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Finding the Fourth Proportional to 256,545.60, 384,781.95 and 88,073.70

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Solution

The fourth proportional to 256,545.60, 384,781.95 and 88,073.70 is: 132,098.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,545.60 : 384,781.95 = 88,073.70 : x
  2. Step 2: Convert to fraction form
    256,545.60/384,781.95 = 88,073.70/x
  3. Step 3: Cross multiply
    256,545.60x = 384,781.95 × 88,073.70
  4. Step 4: Simplify right side
    256,545.60x = 33,889,170,029.72
  5. Step 5: Solve for x
    x = 33,889,170,029.72/256,545.60
  6. Step 6: Final answer
    x = 132,098.04

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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.