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Finding the Fourth Proportional to 344.60, 517.17 and 267.38

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Solution

The fourth proportional to 344.60, 517.17 and 267.38 is: 401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.60 : 517.17 = 267.38 : x
  2. Step 2: Convert to fraction form
    344.60/517.17 = 267.38/x
  3. Step 3: Cross multiply
    344.60x = 517.17 × 267.38
  4. Step 4: Simplify right side
    344.60x = 138,278.33
  5. Step 5: Solve for x
    x = 138,278.33/344.60
  6. Step 6: Final answer
    x = 401.28

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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.