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Finding the Third Proportional to 124,568 and 261,280

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Solution

The third proportional to 124,568 and 261,280 is: 548,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,568 : 261,280 = 261,280 : x
  2. Step 2: Convert to fraction form
    124,568/261,280 = 261,280/x
  3. Step 3: Cross multiply
    124,568x = 261,280 × 261,280
  4. Step 4: Simplify right side
    124,568x = 68,267,238,400
  5. Step 5: Solve for x
    x = 68,267,238,400/124,568
  6. Step 6: Final answer
    x = 548,031.91

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.