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Finding the Third Proportional to 118,218 and 177,449

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Solution

The third proportional to 118,218 and 177,449 is: 266,356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,218 : 177,449 = 177,449 : x
  2. Step 2: Convert to fraction form
    118,218/177,449 = 177,449/x
  3. Step 3: Cross multiply
    118,218x = 177,449 × 177,449
  4. Step 4: Simplify right side
    118,218x = 31,488,147,601
  5. Step 5: Solve for x
    x = 31,488,147,601/118,218
  6. Step 6: Final answer
    x = 266,356.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.