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Finding the Fourth Proportional to 539,641.88, 809,321.72 and 160,460.49

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Solution

The fourth proportional to 539,641.88, 809,321.72 and 160,460.49 is: 240,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,641.88 : 809,321.72 = 160,460.49 : x
  2. Step 2: Convert to fraction form
    539,641.88/809,321.72 = 160,460.49/x
  3. Step 3: Cross multiply
    539,641.88x = 809,321.72 × 160,460.49
  4. Step 4: Simplify right side
    539,641.88x = 129,864,158,956.54
  5. Step 5: Solve for x
    x = 129,864,158,956.54/539,641.88
  6. Step 6: Final answer
    x = 240,648.78

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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.