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Finding the Third Proportional to 125 and 173

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Solution

The third proportional to 125 and 173 is: 239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125 : 173 = 173 : x
  2. Step 2: Convert to fraction form
    125/173 = 173/x
  3. Step 3: Cross multiply
    125x = 173 × 173
  4. Step 4: Simplify right side
    125x = 29,929
  5. Step 5: Solve for x
    x = 29,929/125
  6. Step 6: Final answer
    x = 239.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.