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Finding the Third Proportional to 81,036 and 176,868

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Solution

The third proportional to 81,036 and 176,868 is: 386,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,036 : 176,868 = 176,868 : x
  2. Step 2: Convert to fraction form
    81,036/176,868 = 176,868/x
  3. Step 3: Cross multiply
    81,036x = 176,868 × 176,868
  4. Step 4: Simplify right side
    81,036x = 31,282,289,424
  5. Step 5: Solve for x
    x = 31,282,289,424/81,036
  6. Step 6: Final answer
    x = 386,029.54

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.