Finding Proportions Flashcards
(13 cards)
What formula do you use to find a missing value in a percent problem?
Percent / 100 = Part / Whole
What does “part” represent in the percent proportion formula
The portion or amount being compared to the whole.
What does “whole” mean in the percent proportion formula?
The total amount or the number the percent is taken from.
What does the “percent” in the formula represent?
A ratio out of 100.
In the formula percent/100 = part/whole, what does the fraction percent/100 represent?
It shows the decimal form of the percent.
How do you solve proportions using the formula?
- Find the missing proportion
- Label the missing proportion x
- now Add the x to the end of any number that is diagonaly across from it
- Multiply the remaining numbers together
- Divide the multiplied number by the number with the x
The formula is percent/100 = part/whole
Diagonal means to go in a direction like this: \ and / (and vice versa). It’s not quite left or right, it can be pointing up, or down at the same time.
What is the first step of solving a missing proportion?
Find the missing proportion
What is the second step?
Label the missing proportion x
The third step to finding a proportion is ___________
Adding x to the number diagonally across from it
Diagonal means to go in a direction like this: \ and / (and vice versa). It’s not quite left or right, it can be pointing up, or down at the same time.
The fourth step to finding a proportion?
Multiply the remaining numbers together
What is the fifth step?
Write an equation with the number and variable equal to the product
For example 56x = 3460
What is the sixth step?
Divide the product by the number with the variable
If it’s the percent that’s missing, then always remember to add the percentage sign (%) at the end when you are done with this method.
What is the product?
The number that is the result of multiplying two (or more) numbers together
