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Finding the Third Proportional to 64,515 and 131,622

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Solution

The third proportional to 64,515 and 131,622 is: 268,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,515 : 131,622 = 131,622 : x
  2. Step 2: Convert to fraction form
    64,515/131,622 = 131,622/x
  3. Step 3: Cross multiply
    64,515x = 131,622 × 131,622
  4. Step 4: Simplify right side
    64,515x = 17,324,350,884
  5. Step 5: Solve for x
    x = 17,324,350,884/64,515
  6. Step 6: Final answer
    x = 268,532.14

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.