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Finding the Fourth Proportional to 487,772.28, 731,671.38 and 132,793.56

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Solution

The fourth proportional to 487,772.28, 731,671.38 and 132,793.56 is: 199,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,772.28 : 731,671.38 = 132,793.56 : x
  2. Step 2: Convert to fraction form
    487,772.28/731,671.38 = 132,793.56/x
  3. Step 3: Cross multiply
    487,772.28x = 731,671.38 × 132,793.56
  4. Step 4: Simplify right side
    487,772.28x = 97,161,247,300.31
  5. Step 5: Solve for x
    x = 97,161,247,300.31/487,772.28
  6. Step 6: Final answer
    x = 199,193.87

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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.