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Finding the Third Proportional to 108.84 and 166.64

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Solution

The third proportional to 108.84 and 166.64 is: 255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.84 : 166.64 = 166.64 : x
  2. Step 2: Convert to fraction form
    108.84/166.64 = 166.64/x
  3. Step 3: Cross multiply
    108.84x = 166.64 × 166.64
  4. Step 4: Simplify right side
    108.84x = 27,769.10
  5. Step 5: Solve for x
    x = 27,769.10/108.84
  6. Step 6: Final answer
    x = 255.13

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.