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Finding the Third Proportional to 69,491 and 135,526

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Solution

The third proportional to 69,491 and 135,526 is: 264,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,491 : 135,526 = 135,526 : x
  2. Step 2: Convert to fraction form
    69,491/135,526 = 135,526/x
  3. Step 3: Cross multiply
    69,491x = 135,526 × 135,526
  4. Step 4: Simplify right side
    69,491x = 18,367,296,676
  5. Step 5: Solve for x
    x = 18,367,296,676/69,491
  6. Step 6: Final answer
    x = 264,311.88

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.