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Finding the Third Proportional to 80,129.25 and 174,170.25

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Solution

The third proportional to 80,129.25 and 174,170.25 is: 378,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,129.25 : 174,170.25 = 174,170.25 : x
  2. Step 2: Convert to fraction form
    80,129.25/174,170.25 = 174,170.25/x
  3. Step 3: Cross multiply
    80,129.25x = 174,170.25 × 174,170.25
  4. Step 4: Simplify right side
    80,129.25x = 30,335,275,985.06
  5. Step 5: Solve for x
    x = 30,335,275,985.06/80,129.25
  6. Step 6: Final answer
    x = 378,579.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.