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Finding the Third Proportional to 122,496 and 259,680

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Solution

The third proportional to 122,496 and 259,680 is: 550,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,496 : 259,680 = 259,680 : x
  2. Step 2: Convert to fraction form
    122,496/259,680 = 259,680/x
  3. Step 3: Cross multiply
    122,496x = 259,680 × 259,680
  4. Step 4: Simplify right side
    122,496x = 67,433,702,400
  5. Step 5: Solve for x
    x = 67,433,702,400/122,496
  6. Step 6: Final answer
    x = 550,497.18

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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.