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Finding the Third Proportional to 69,561 and 150,239

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Solution

The third proportional to 69,561 and 150,239 is: 324,488.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,561 : 150,239 = 150,239 : x
  2. Step 2: Convert to fraction form
    69,561/150,239 = 150,239/x
  3. Step 3: Cross multiply
    69,561x = 150,239 × 150,239
  4. Step 4: Simplify right side
    69,561x = 22,571,757,121
  5. Step 5: Solve for x
    x = 22,571,757,121/69,561
  6. Step 6: Final answer
    x = 324,488.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.