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Finding the Third Proportional to 64,540 and 136,914

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Solution

The third proportional to 64,540 and 136,914 is: 290,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,540 : 136,914 = 136,914 : x
  2. Step 2: Convert to fraction form
    64,540/136,914 = 136,914/x
  3. Step 3: Cross multiply
    64,540x = 136,914 × 136,914
  4. Step 4: Simplify right side
    64,540x = 18,745,443,396
  5. Step 5: Solve for x
    x = 18,745,443,396/64,540
  6. Step 6: Final answer
    x = 290,446.91

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.