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Finding the Fourth Proportional to 539,635.48, 809,312.15 and 160,454.09

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Solution

The fourth proportional to 539,635.48, 809,312.15 and 160,454.09 is: 240,639.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,635.48 : 809,312.15 = 160,454.09 : x
  2. Step 2: Convert to fraction form
    539,635.48/809,312.15 = 160,454.09/x
  3. Step 3: Cross multiply
    539,635.48x = 809,312.15 × 160,454.09
  4. Step 4: Simplify right side
    539,635.48x = 129,857,446,978.61
  5. Step 5: Solve for x
    x = 129,857,446,978.61/539,635.48
  6. Step 6: Final answer
    x = 240,639.20

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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.