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Finding the Fourth Proportional to 234,141, 323,115.36 and 126,711

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Solution

The fourth proportional to 234,141, 323,115.36 and 126,711 is: 174,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,141 : 323,115.36 = 126,711 : x
  2. Step 2: Convert to fraction form
    234,141/323,115.36 = 126,711/x
  3. Step 3: Cross multiply
    234,141x = 323,115.36 × 126,711
  4. Step 4: Simplify right side
    234,141x = 40,942,270,380.96
  5. Step 5: Solve for x
    x = 40,942,270,380.96/234,141
  6. Step 6: Final answer
    x = 174,861.60

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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.