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Finding the Fourth Proportional to 238,951.42, 329,753.04 and 131,520.68

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Solution

The fourth proportional to 238,951.42, 329,753.04 and 131,520.68 is: 181,498.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,951.42 : 329,753.04 = 131,520.68 : x
  2. Step 2: Convert to fraction form
    238,951.42/329,753.04 = 131,520.68/x
  3. Step 3: Cross multiply
    238,951.42x = 329,753.04 × 131,520.68
  4. Step 4: Simplify right side
    238,951.42x = 43,369,344,052.87
  5. Step 5: Solve for x
    x = 43,369,344,052.87/238,951.42
  6. Step 6: Final answer
    x = 181,498.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.