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Finding the Third Proportional to 169.25 and 372.25

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Solution

The third proportional to 169.25 and 372.25 is: 818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.25 : 372.25 = 372.25 : x
  2. Step 2: Convert to fraction form
    169.25/372.25 = 372.25/x
  3. Step 3: Cross multiply
    169.25x = 372.25 × 372.25
  4. Step 4: Simplify right side
    169.25x = 138,570.06
  5. Step 5: Solve for x
    x = 138,570.06/169.25
  6. Step 6: Final answer
    x = 818.73

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.