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Finding the Third Proportional to 126,936 and 276,642

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Solution

The third proportional to 126,936 and 276,642 is: 602,908.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,936 : 276,642 = 276,642 : x
  2. Step 2: Convert to fraction form
    126,936/276,642 = 276,642/x
  3. Step 3: Cross multiply
    126,936x = 276,642 × 276,642
  4. Step 4: Simplify right side
    126,936x = 76,530,796,164
  5. Step 5: Solve for x
    x = 76,530,796,164/126,936
  6. Step 6: Final answer
    x = 602,908.52

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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.