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Finding the Fourth Proportional to 250,724.35, 375,732.89 and 138,455.11

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Solution

The fourth proportional to 250,724.35, 375,732.89 and 138,455.11 is: 207,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,724.35 : 375,732.89 = 138,455.11 : x
  2. Step 2: Convert to fraction form
    250,724.35/375,732.89 = 138,455.11/x
  3. Step 3: Cross multiply
    250,724.35x = 375,732.89 × 138,455.11
  4. Step 4: Simplify right side
    250,724.35x = 52,022,138,615.57
  5. Step 5: Solve for x
    x = 52,022,138,615.57/250,724.35
  6. Step 6: Final answer
    x = 207,487.38

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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.