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Finding the Third Proportional to 87,309.56 and 188,391.94

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Solution

The third proportional to 87,309.56 and 188,391.94 is: 406,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,309.56 : 188,391.94 = 188,391.94 : x
  2. Step 2: Convert to fraction form
    87,309.56/188,391.94 = 188,391.94/x
  3. Step 3: Cross multiply
    87,309.56x = 188,391.94 × 188,391.94
  4. Step 4: Simplify right side
    87,309.56x = 35,491,522,115.00
  5. Step 5: Solve for x
    x = 35,491,522,115.00/87,309.56
  6. Step 6: Final answer
    x = 406,502.12

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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.