Answer
$384
Work Step by Step
You are given the ratio of dimensions 4:3
Flooring is sold by the square foot, which is an area. Therefore, you must find the ratio of the areas. The ratio of the areas is the square of the ratio of the side lengths.
$\frac{4^{2}}{3^{2}}$=$\frac{16}{9}$
Set up a proportion for the cost of the flooring based on the proportion of areas.
$\frac{16}{9}$=$\frac{C}{$216}$
Cross multiply
$9C=16(216)\\
9C=3456$
Divide both sides by 9.
C=$384
