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Finding the Third Proportional to 122,188 and 269,228

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Solution

The third proportional to 122,188 and 269,228 is: 593,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,188 : 269,228 = 269,228 : x
  2. Step 2: Convert to fraction form
    122,188/269,228 = 269,228/x
  3. Step 3: Cross multiply
    122,188x = 269,228 × 269,228
  4. Step 4: Simplify right side
    122,188x = 72,483,715,984
  5. Step 5: Solve for x
    x = 72,483,715,984/122,188
  6. Step 6: Final answer
    x = 593,214.69

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.