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Finding the Third Proportional to 69,481.13 and 149,680.13

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Solution

The third proportional to 69,481.13 and 149,680.13 is: 322,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.13 : 149,680.13 = 149,680.13 : x
  2. Step 2: Convert to fraction form
    69,481.13/149,680.13 = 149,680.13/x
  3. Step 3: Cross multiply
    69,481.13x = 149,680.13 × 149,680.13
  4. Step 4: Simplify right side
    69,481.13x = 22,404,139,820.02
  5. Step 5: Solve for x
    x = 22,404,139,820.02/69,481.13
  6. Step 6: Final answer
    x = 322,449.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.