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Finding the Fourth Proportional to 487,174.38, 730,761.57 and 171,557.34

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Solution

The fourth proportional to 487,174.38, 730,761.57 and 171,557.34 is: 257,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,174.38 : 730,761.57 = 171,557.34 : x
  2. Step 2: Convert to fraction form
    487,174.38/730,761.57 = 171,557.34/x
  3. Step 3: Cross multiply
    487,174.38x = 730,761.57 × 171,557.34
  4. Step 4: Simplify right side
    487,174.38x = 125,367,511,123.42
  5. Step 5: Solve for x
    x = 125,367,511,123.42/487,174.38
  6. Step 6: Final answer
    x = 257,336.01

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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.