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Finding the Fourth Proportional to 351,737, 527,764.68 and 138,446.18

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Solution

The fourth proportional to 351,737, 527,764.68 and 138,446.18 is: 207,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,737 : 527,764.68 = 138,446.18 : x
  2. Step 2: Convert to fraction form
    351,737/527,764.68 = 138,446.18/x
  3. Step 3: Cross multiply
    351,737x = 527,764.68 × 138,446.18
  4. Step 4: Simplify right side
    351,737x = 73,067,003,884.92
  5. Step 5: Solve for x
    x = 73,067,003,884.92/351,737
  6. Step 6: Final answer
    x = 207,731.92

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1.5x scale

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.