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Finding the Third Proportional to 180,042.75 and 387,997.75

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Solution

The third proportional to 180,042.75 and 387,997.75 is: 836,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,042.75 : 387,997.75 = 387,997.75 : x
  2. Step 2: Convert to fraction form
    180,042.75/387,997.75 = 387,997.75/x
  3. Step 3: Cross multiply
    180,042.75x = 387,997.75 × 387,997.75
  4. Step 4: Simplify right side
    180,042.75x = 150,542,254,005.06
  5. Step 5: Solve for x
    x = 150,542,254,005.06/180,042.75
  6. Step 6: Final answer
    x = 836,147.27

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.