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Finding the Third Proportional to 176.25 and 266.91

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Solution

The third proportional to 176.25 and 266.91 is: 404.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.25 : 266.91 = 266.91 : x
  2. Step 2: Convert to fraction form
    176.25/266.91 = 266.91/x
  3. Step 3: Cross multiply
    176.25x = 266.91 × 266.91
  4. Step 4: Simplify right side
    176.25x = 71,238.95
  5. Step 5: Solve for x
    x = 71,238.95/176.25
  6. Step 6: Final answer
    x = 404.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.