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Finding the Third Proportional to 122,928 and 268,102

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Solution

The third proportional to 122,928 and 268,102 is: 584,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,928 : 268,102 = 268,102 : x
  2. Step 2: Convert to fraction form
    122,928/268,102 = 268,102/x
  3. Step 3: Cross multiply
    122,928x = 268,102 × 268,102
  4. Step 4: Simplify right side
    122,928x = 71,878,682,404
  5. Step 5: Solve for x
    x = 71,878,682,404/122,928
  6. Step 6: Final answer
    x = 584,721.81

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.