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Finding the Fourth Proportional to 375.98, 563.28 and 267.56

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Solution

The fourth proportional to 375.98, 563.28 and 267.56 is: 400.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.98 : 563.28 = 267.56 : x
  2. Step 2: Convert to fraction form
    375.98/563.28 = 267.56/x
  3. Step 3: Cross multiply
    375.98x = 563.28 × 267.56
  4. Step 4: Simplify right side
    375.98x = 150,711.20
  5. Step 5: Solve for x
    x = 150,711.20/375.98
  6. Step 6: Final answer
    x = 400.85

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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.