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Finding the Third Proportional to 12.16 and 22.30

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Solution

The third proportional to 12.16 and 22.30 is: 40.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12.16 : 22.30 = 22.30 : x
  2. Step 2: Convert to fraction form
    12.16/22.30 = 22.30/x
  3. Step 3: Cross multiply
    12.16x = 22.30 × 22.30
  4. Step 4: Simplify right side
    12.16x = 497.30
  5. Step 5: Solve for x
    x = 497.30/12.16
  6. Step 6: Final answer
    x = 40.88

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.