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Finding the Third Proportional to 8.11 and 22.30

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Solution

The third proportional to 8.11 and 22.30 is: 61.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.11 : 22.30 = 22.30 : x
  2. Step 2: Convert to fraction form
    8.11/22.30 = 22.30/x
  3. Step 3: Cross multiply
    8.11x = 22.30 × 22.30
  4. Step 4: Simplify right side
    8.11x = 497.30
  5. Step 5: Solve for x
    x = 497.30/8.11
  6. Step 6: Final answer
    x = 61.33

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Why These Related Problems?

These problems maintain the same ratio (2.75) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.