Finding the Fourth Proportional to 378,800.24, 522,773.88 and 217,711.52
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Solution
The fourth proportional to 378,800.24, 522,773.88 and 217,711.52 is: 300,458.88
Step by Step Solution
- Step 1: Write the proportion equation
378,800.24 : 522,773.88 = 217,711.52 : x - Step 2: Convert to fraction form
378,800.24/522,773.88 = 217,711.52/x - Step 3: Cross multiply
378,800.24x = 522,773.88 × 217,711.52 - Step 4: Simplify right side
378,800.24x = 113,813,896,031.10 - Step 5: Solve for x
x = 113,813,896,031.10/378,800.24 - Step 6: Final answer
x = 300,458.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.