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Finding the Third Proportional to 108.28 and 146.81

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Solution

The third proportional to 108.28 and 146.81 is: 199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.28 : 146.81 = 146.81 : x
  2. Step 2: Convert to fraction form
    108.28/146.81 = 146.81/x
  3. Step 3: Cross multiply
    108.28x = 146.81 × 146.81
  4. Step 4: Simplify right side
    108.28x = 21,553.91
  5. Step 5: Solve for x
    x = 21,553.91/108.28
  6. Step 6: Final answer
    x = 199.05

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.