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Finding the Third Proportional to 203,218 and 274,131

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Solution

The third proportional to 203,218 and 274,131 is: 369,789.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,218 : 274,131 = 274,131 : x
  2. Step 2: Convert to fraction form
    203,218/274,131 = 274,131/x
  3. Step 3: Cross multiply
    203,218x = 274,131 × 274,131
  4. Step 4: Simplify right side
    203,218x = 75,147,805,161
  5. Step 5: Solve for x
    x = 75,147,805,161/203,218
  6. Step 6: Final answer
    x = 369,789.12

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.