Finding the Fourth Proportional to 392,269.26, 588,491.36 and 142,951.26
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Solution
The fourth proportional to 392,269.26, 588,491.36 and 142,951.26 is: 214,458.77
Step by Step Solution
- Step 1: Write the proportion equation
392,269.26 : 588,491.36 = 142,951.26 : x - Step 2: Convert to fraction form
392,269.26/588,491.36 = 142,951.26/x - Step 3: Cross multiply
392,269.26x = 588,491.36 × 142,951.26 - Step 4: Simplify right side
392,269.26x = 84,125,581,411.11 - Step 5: Solve for x
x = 84,125,581,411.11/392,269.26 - Step 6: Final answer
x = 214,458.77
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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.