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Finding the Fourth Proportional to 269,432.70, 404,149.05 and 247,659.90

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Solution

The fourth proportional to 269,432.70, 404,149.05 and 247,659.90 is: 371,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,432.70 : 404,149.05 = 247,659.90 : x
  2. Step 2: Convert to fraction form
    269,432.70/404,149.05 = 247,659.90/x
  3. Step 3: Cross multiply
    269,432.70x = 404,149.05 × 247,659.90
  4. Step 4: Simplify right side
    269,432.70x = 100,091,513,308.10
  5. Step 5: Solve for x
    x = 100,091,513,308.10/269,432.70
  6. Step 6: Final answer
    x = 371,489.85

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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.