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Finding the Fourth Proportional to 436,229.38, 654,344.12 and 136,709.92

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Solution

The fourth proportional to 436,229.38, 654,344.12 and 136,709.92 is: 205,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,229.38 : 654,344.12 = 136,709.92 : x
  2. Step 2: Convert to fraction form
    436,229.38/654,344.12 = 136,709.92/x
  3. Step 3: Cross multiply
    436,229.38x = 654,344.12 × 136,709.92
  4. Step 4: Simplify right side
    436,229.38x = 89,455,332,297.67
  5. Step 5: Solve for x
    x = 89,455,332,297.67/436,229.38
  6. Step 6: Final answer
    x = 205,064.90

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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.