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Finding the Third Proportional to 176.13 and 255.69

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Solution

The third proportional to 176.13 and 255.69 is: 371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176.13 : 255.69 = 255.69 : x
  2. Step 2: Convert to fraction form
    176.13/255.69 = 255.69/x
  3. Step 3: Cross multiply
    176.13x = 255.69 × 255.69
  4. Step 4: Simplify right side
    176.13x = 65,376.10
  5. Step 5: Solve for x
    x = 65,376.10/176.13
  6. Step 6: Final answer
    x = 371.19

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.