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Finding the Third Proportional to 103,689 and 226,139

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Solution

The third proportional to 103,689 and 226,139 is: 493,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689 : 226,139 = 226,139 : x
  2. Step 2: Convert to fraction form
    103,689/226,139 = 226,139/x
  3. Step 3: Cross multiply
    103,689x = 226,139 × 226,139
  4. Step 4: Simplify right side
    103,689x = 51,138,847,321
  5. Step 5: Solve for x
    x = 51,138,847,321/103,689
  6. Step 6: Final answer
    x = 493,194.53

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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.