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Finding the Third Proportional to 63,894 and 138,648

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Solution

The third proportional to 63,894 and 138,648 is: 300,861.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,894 : 138,648 = 138,648 : x
  2. Step 2: Convert to fraction form
    63,894/138,648 = 138,648/x
  3. Step 3: Cross multiply
    63,894x = 138,648 × 138,648
  4. Step 4: Simplify right side
    63,894x = 19,223,267,904
  5. Step 5: Solve for x
    x = 19,223,267,904/63,894
  6. Step 6: Final answer
    x = 300,861.86

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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.