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Finding the Third Proportional to 124.25 and 267.50

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Solution

The third proportional to 124.25 and 267.50 is: 575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.25 : 267.50 = 267.50 : x
  2. Step 2: Convert to fraction form
    124.25/267.50 = 267.50/x
  3. Step 3: Cross multiply
    124.25x = 267.50 × 267.50
  4. Step 4: Simplify right side
    124.25x = 71,556.25
  5. Step 5: Solve for x
    x = 71,556.25/124.25
  6. Step 6: Final answer
    x = 575.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.