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Finding the Third Proportional to 122,348 and 161,238

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Solution

The third proportional to 122,348 and 161,238 is: 212,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,348 : 161,238 = 161,238 : x
  2. Step 2: Convert to fraction form
    122,348/161,238 = 161,238/x
  3. Step 3: Cross multiply
    122,348x = 161,238 × 161,238
  4. Step 4: Simplify right side
    122,348x = 25,997,692,644
  5. Step 5: Solve for x
    x = 25,997,692,644/122,348
  6. Step 6: Final answer
    x = 212,489.72

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.