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Finding the Third Proportional to 121,219 and 263,801

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Solution

The third proportional to 121,219 and 263,801 is: 574,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,219 : 263,801 = 263,801 : x
  2. Step 2: Convert to fraction form
    121,219/263,801 = 263,801/x
  3. Step 3: Cross multiply
    121,219x = 263,801 × 263,801
  4. Step 4: Simplify right side
    121,219x = 69,590,967,601
  5. Step 5: Solve for x
    x = 69,590,967,601/121,219
  6. Step 6: Final answer
    x = 574,092.90

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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.