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Finding the Third Proportional to 126,770 and 251,270

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Solution

The third proportional to 126,770 and 251,270 is: 498,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,770 : 251,270 = 251,270 : x
  2. Step 2: Convert to fraction form
    126,770/251,270 = 251,270/x
  3. Step 3: Cross multiply
    126,770x = 251,270 × 251,270
  4. Step 4: Simplify right side
    126,770x = 63,136,612,900
  5. Step 5: Solve for x
    x = 63,136,612,900/126,770
  6. Step 6: Final answer
    x = 498,040.65

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.