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Finding the Third Proportional to 122,286 and 252,429

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Solution

The third proportional to 122,286 and 252,429 is: 521,076.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,286 : 252,429 = 252,429 : x
  2. Step 2: Convert to fraction form
    122,286/252,429 = 252,429/x
  3. Step 3: Cross multiply
    122,286x = 252,429 × 252,429
  4. Step 4: Simplify right side
    122,286x = 63,720,400,041
  5. Step 5: Solve for x
    x = 63,720,400,041/122,286
  6. Step 6: Final answer
    x = 521,076.82

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.