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Finding the Third Proportional to 82,812.38 and 178,739.44

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Solution

The third proportional to 82,812.38 and 178,739.44 is: 385,785.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,812.38 : 178,739.44 = 178,739.44 : x
  2. Step 2: Convert to fraction form
    82,812.38/178,739.44 = 178,739.44/x
  3. Step 3: Cross multiply
    82,812.38x = 178,739.44 × 178,739.44
  4. Step 4: Simplify right side
    82,812.38x = 31,947,786,517.82
  5. Step 5: Solve for x
    x = 31,947,786,517.82/82,812.38
  6. Step 6: Final answer
    x = 385,785.17

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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.