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Finding the Third Proportional to 63.19 and 84.92

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Solution

The third proportional to 63.19 and 84.92 is: 114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.19 : 84.92 = 84.92 : x
  2. Step 2: Convert to fraction form
    63.19/84.92 = 84.92/x
  3. Step 3: Cross multiply
    63.19x = 84.92 × 84.92
  4. Step 4: Simplify right side
    63.19x = 7,210.65
  5. Step 5: Solve for x
    x = 7,210.65/63.19
  6. Step 6: Final answer
    x = 114.11

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.