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Finding the Third Proportional to 126,272 and 280,572

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Solution

The third proportional to 126,272 and 280,572 is: 623,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,272 : 280,572 = 280,572 : x
  2. Step 2: Convert to fraction form
    126,272/280,572 = 280,572/x
  3. Step 3: Cross multiply
    126,272x = 280,572 × 280,572
  4. Step 4: Simplify right side
    126,272x = 78,720,647,184
  5. Step 5: Solve for x
    x = 78,720,647,184/126,272
  6. Step 6: Final answer
    x = 623,421.24

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.