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Finding the Third Proportional to 243.75 and 267.38

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Solution

The third proportional to 243.75 and 267.38 is: 293.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.75 : 267.38 = 267.38 : x
  2. Step 2: Convert to fraction form
    243.75/267.38 = 267.38/x
  3. Step 3: Cross multiply
    243.75x = 267.38 × 267.38
  4. Step 4: Simplify right side
    243.75x = 71,489.39
  5. Step 5: Solve for x
    x = 71,489.39/243.75
  6. Step 6: Final answer
    x = 293.29

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.