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Finding the Fourth Proportional to 453,359.85, 680,015.17 and 137,792.15

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Solution

The fourth proportional to 453,359.85, 680,015.17 and 137,792.15 is: 206,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,359.85 : 680,015.17 = 137,792.15 : x
  2. Step 2: Convert to fraction form
    453,359.85/680,015.17 = 137,792.15/x
  3. Step 3: Cross multiply
    453,359.85x = 680,015.17 × 137,792.15
  4. Step 4: Simplify right side
    453,359.85x = 93,700,752,306.92
  5. Step 5: Solve for x
    x = 93,700,752,306.92/453,359.85
  6. Step 6: Final answer
    x = 206,680.75

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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.