Finding the Fourth Proportional to 398,901.26, 598,221.96 and 132,590.26
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Solution
The fourth proportional to 398,901.26, 598,221.96 and 132,590.26 is: 198,842.20
Step by Step Solution
- Step 1: Write the proportion equation
398,901.26 : 598,221.96 = 132,590.26 : x - Step 2: Convert to fraction form
398,901.26/598,221.96 = 132,590.26/x - Step 3: Cross multiply
398,901.26x = 598,221.96 × 132,590.26 - Step 4: Simplify right side
398,901.26x = 79,318,405,214.11 - Step 5: Solve for x
x = 79,318,405,214.11/398,901.26 - Step 6: Final answer
x = 198,842.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.