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Finding the Third Proportional to 63,866 and 138,922

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Solution

The third proportional to 63,866 and 138,922 is: 302,184.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,866 : 138,922 = 138,922 : x
  2. Step 2: Convert to fraction form
    63,866/138,922 = 138,922/x
  3. Step 3: Cross multiply
    63,866x = 138,922 × 138,922
  4. Step 4: Simplify right side
    63,866x = 19,299,322,084
  5. Step 5: Solve for x
    x = 19,299,322,084/63,866
  6. Step 6: Final answer
    x = 302,184.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.