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Finding the Third Proportional to 81,708.75 and 176,325.75

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Solution

The third proportional to 81,708.75 and 176,325.75 is: 380,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,708.75 : 176,325.75 = 176,325.75 : x
  2. Step 2: Convert to fraction form
    81,708.75/176,325.75 = 176,325.75/x
  3. Step 3: Cross multiply
    81,708.75x = 176,325.75 × 176,325.75
  4. Step 4: Simplify right side
    81,708.75x = 31,090,770,113.06
  5. Step 5: Solve for x
    x = 31,090,770,113.06/81,708.75
  6. Step 6: Final answer
    x = 380,507.23

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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.