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Finding the Fourth Proportional to 150,517.56, 225,911.70 and 80,456.76

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Solution

The fourth proportional to 150,517.56, 225,911.70 and 80,456.76 is: 120,757.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,517.56 : 225,911.70 = 80,456.76 : x
  2. Step 2: Convert to fraction form
    150,517.56/225,911.70 = 80,456.76/x
  3. Step 3: Cross multiply
    150,517.56x = 225,911.70 × 80,456.76
  4. Step 4: Simplify right side
    150,517.56x = 18,176,123,428.09
  5. Step 5: Solve for x
    x = 18,176,123,428.09/150,517.56
  6. Step 6: Final answer
    x = 120,757.49

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1.5x scale

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.