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Finding the Fourth Proportional to 539,672.48, 809,367.60 and 160,491.20

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Solution

The fourth proportional to 539,672.48, 809,367.60 and 160,491.20 is: 240,694.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,672.48 : 809,367.60 = 160,491.20 : x
  2. Step 2: Convert to fraction form
    539,672.48/809,367.60 = 160,491.20/x
  3. Step 3: Cross multiply
    539,672.48x = 809,367.60 × 160,491.20
  4. Step 4: Simplify right side
    539,672.48x = 129,896,377,365.12
  5. Step 5: Solve for x
    x = 129,896,377,365.12/539,672.48
  6. Step 6: Final answer
    x = 240,694.83

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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.