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Finding the Third Proportional to 86.91 and 226.13

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Solution

The third proportional to 86.91 and 226.13 is: 588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.91 : 226.13 = 226.13 : x
  2. Step 2: Convert to fraction form
    86.91/226.13 = 226.13/x
  3. Step 3: Cross multiply
    86.91x = 226.13 × 226.13
  4. Step 4: Simplify right side
    86.91x = 51,132.52
  5. Step 5: Solve for x
    x = 51,132.52/86.91
  6. Step 6: Final answer
    x = 588.36

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.