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Finding the Fourth Proportional to 234,372.56, 323,431.56 and 126,939.92

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Solution

The fourth proportional to 234,372.56, 323,431.56 and 126,939.92 is: 175,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,372.56 : 323,431.56 = 126,939.92 : x
  2. Step 2: Convert to fraction form
    234,372.56/323,431.56 = 126,939.92/x
  3. Step 3: Cross multiply
    234,372.56x = 323,431.56 × 126,939.92
  4. Step 4: Simplify right side
    234,372.56x = 41,056,376,351.88
  5. Step 5: Solve for x
    x = 41,056,376,351.88/234,372.56
  6. Step 6: Final answer
    x = 175,175.70

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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.