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Finding the Fourth Proportional to 381,345.98, 572,052.17 and 125,101.69

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Solution

The fourth proportional to 381,345.98, 572,052.17 and 125,101.69 is: 187,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,345.98 : 572,052.17 = 125,101.69 : x
  2. Step 2: Convert to fraction form
    381,345.98/572,052.17 = 125,101.69/x
  3. Step 3: Cross multiply
    381,345.98x = 572,052.17 × 125,101.69
  4. Step 4: Simplify right side
    381,345.98x = 71,564,692,117.79
  5. Step 5: Solve for x
    x = 71,564,692,117.79/381,345.98
  6. Step 6: Final answer
    x = 187,663.43

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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.