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Finding the Fourth Proportional to 230,262.32, 345,363.24 and 72,491.60

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Solution

The fourth proportional to 230,262.32, 345,363.24 and 72,491.60 is: 108,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,262.32 : 345,363.24 = 72,491.60 : x
  2. Step 2: Convert to fraction form
    230,262.32/345,363.24 = 72,491.60/x
  3. Step 3: Cross multiply
    230,262.32x = 345,363.24 × 72,491.60
  4. Step 4: Simplify right side
    230,262.32x = 25,035,933,848.78
  5. Step 5: Solve for x
    x = 25,035,933,848.78/230,262.32
  6. Step 6: Final answer
    x = 108,727.88

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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.