# A survey company randomly called 200 people to get their opinion on a certain product. Of the 200...

## Question:

A survey company randomly called 200 people to get their opinion on a certain product. Of the 200 people, 125 liked the product and 75 did not like it. If this same trend continues, how many people should like the product out of 1,000 people?

## Ratio and Proportion:

When two ratios in fraction form are equated it forms a proportion, where an unknown can be solved if three of the terms are given. It would often entail cross multiplying one of the terms in order to get the unknown.

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The given ratios from the survey company based on the 200 people are:

\begin{align} \text{People who liked the product} &= \dfrac {125}{200} \\...

Practice Problems for Calculating Ratios and Proportions

from

Chapter 30 / Lesson 3
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In this lesson, you'll get a quick review of a type of math problem that shows up on the SAT: ratios and proportions. We'll walk through some problems in the video, and you can test your skills in the quiz questions.