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Finding the Fourth Proportional to 300,759.76, 451,150.56 and 101,086.80

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Solution

The fourth proportional to 300,759.76, 451,150.56 and 101,086.80 is: 151,633.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,759.76 : 451,150.56 = 101,086.80 : x
  2. Step 2: Convert to fraction form
    300,759.76/451,150.56 = 101,086.80/x
  3. Step 3: Cross multiply
    300,759.76x = 451,150.56 × 101,086.80
  4. Step 4: Simplify right side
    300,759.76x = 45,605,366,428.61
  5. Step 5: Solve for x
    x = 45,605,366,428.61/300,759.76
  6. Step 6: Final answer
    x = 151,633.87

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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.