Finding the Fourth Proportional to 472,421.60, 708,729.60 and 157,104.80
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Solution
The fourth proportional to 472,421.60, 708,729.60 and 157,104.80 is: 235,689.52
Step by Step Solution
- Step 1: Write the proportion equation
472,421.60 : 708,729.60 = 157,104.80 : x - Step 2: Convert to fraction form
472,421.60/708,729.60 = 157,104.80/x - Step 3: Cross multiply
472,421.60x = 708,729.60 × 157,104.80 - Step 4: Simplify right side
472,421.60x = 111,344,822,062.08 - Step 5: Solve for x
x = 111,344,822,062.08/472,421.60 - Step 6: Final answer
x = 235,689.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.