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Finding the Fourth Proportional to 445,285.20, 667,927.80 and 267,700.80

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Solution

The fourth proportional to 445,285.20, 667,927.80 and 267,700.80 is: 401,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,285.20 : 667,927.80 = 267,700.80 : x
  2. Step 2: Convert to fraction form
    445,285.20/667,927.80 = 267,700.80/x
  3. Step 3: Cross multiply
    445,285.20x = 667,927.80 × 267,700.80
  4. Step 4: Simplify right side
    445,285.20x = 178,804,806,402.24
  5. Step 5: Solve for x
    x = 178,804,806,402.24/445,285.20
  6. Step 6: Final answer
    x = 401,551.20

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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.