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Finding the Fourth Proportional to 267.25, 401.17 and 252.06

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Solution

The fourth proportional to 267.25, 401.17 and 252.06 is: 378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.25 : 401.17 = 252.06 : x
  2. Step 2: Convert to fraction form
    267.25/401.17 = 252.06/x
  3. Step 3: Cross multiply
    267.25x = 401.17 × 252.06
  4. Step 4: Simplify right side
    267.25x = 101,116.90
  5. Step 5: Solve for x
    x = 101,116.90/267.25
  6. Step 6: Final answer
    x = 378.37

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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.