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Finding the Fourth Proportional to 445,546.50, 667,282.14 and 267,660.78

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Solution

The fourth proportional to 445,546.50, 667,282.14 and 267,660.78 is: 400,867.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,546.50 : 667,282.14 = 267,660.78 : x
  2. Step 2: Convert to fraction form
    445,546.50/667,282.14 = 267,660.78/x
  3. Step 3: Cross multiply
    445,546.50x = 667,282.14 × 267,660.78
  4. Step 4: Simplify right side
    445,546.50x = 178,605,258,072.47
  5. Step 5: Solve for x
    x = 178,605,258,072.47/445,546.50
  6. Step 6: Final answer
    x = 400,867.83

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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.