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Finding the Fourth Proportional to 453,890.98, 680,792.73 and 138,350.62

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Solution

The fourth proportional to 453,890.98, 680,792.73 and 138,350.62 is: 207,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,890.98 : 680,792.73 = 138,350.62 : x
  2. Step 2: Convert to fraction form
    453,890.98/680,792.73 = 138,350.62/x
  3. Step 3: Cross multiply
    453,890.98x = 680,792.73 × 138,350.62
  4. Step 4: Simplify right side
    453,890.98x = 94,188,096,286.99
  5. Step 5: Solve for x
    x = 94,188,096,286.99/453,890.98
  6. Step 6: Final answer
    x = 207,512.60

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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.