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Finding the Third Proportional to 63,871 and 138,818

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Solution

The third proportional to 63,871 and 138,818 is: 301,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,871 : 138,818 = 138,818 : x
  2. Step 2: Convert to fraction form
    63,871/138,818 = 138,818/x
  3. Step 3: Cross multiply
    63,871x = 138,818 × 138,818
  4. Step 4: Simplify right side
    63,871x = 19,270,437,124
  5. Step 5: Solve for x
    x = 19,270,437,124/63,871
  6. Step 6: Final answer
    x = 301,708.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.