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Finding the Third Proportional to 131,009 and 280,694

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Solution

The third proportional to 131,009 and 280,694 is: 601,402.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,009 : 280,694 = 280,694 : x
  2. Step 2: Convert to fraction form
    131,009/280,694 = 280,694/x
  3. Step 3: Cross multiply
    131,009x = 280,694 × 280,694
  4. Step 4: Simplify right side
    131,009x = 78,789,121,636
  5. Step 5: Solve for x
    x = 78,789,121,636/131,009
  6. Step 6: Final answer
    x = 601,402.36

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.