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Finding the Fourth Proportional to 351,753.30, 527,626.13 and 85,514.10

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Solution

The fourth proportional to 351,753.30, 527,626.13 and 85,514.10 is: 128,270.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,753.30 : 527,626.13 = 85,514.10 : x
  2. Step 2: Convert to fraction form
    351,753.30/527,626.13 = 85,514.10/x
  3. Step 3: Cross multiply
    351,753.30x = 527,626.13 × 85,514.10
  4. Step 4: Simplify right side
    351,753.30x = 45,119,473,215.86
  5. Step 5: Solve for x
    x = 45,119,473,215.86/351,753.30
  6. Step 6: Final answer
    x = 128,270.22

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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.