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Finding the Third Proportional to 172,674 and 266,387

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Solution

The third proportional to 172,674 and 266,387 is: 410,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,674 : 266,387 = 266,387 : x
  2. Step 2: Convert to fraction form
    172,674/266,387 = 266,387/x
  3. Step 3: Cross multiply
    172,674x = 266,387 × 266,387
  4. Step 4: Simplify right side
    172,674x = 70,962,033,769
  5. Step 5: Solve for x
    x = 70,962,033,769/172,674
  6. Step 6: Final answer
    x = 410,959.58

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.