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Finding the Third Proportional to 126,287 and 210,450

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Solution

The third proportional to 126,287 and 210,450 is: 350,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,287 : 210,450 = 210,450 : x
  2. Step 2: Convert to fraction form
    126,287/210,450 = 210,450/x
  3. Step 3: Cross multiply
    126,287x = 210,450 × 210,450
  4. Step 4: Simplify right side
    126,287x = 44,289,202,500
  5. Step 5: Solve for x
    x = 44,289,202,500/126,287
  6. Step 6: Final answer
    x = 350,702.78

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.