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Finding the Third Proportional to 81,571.50 and 179,232.75

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Solution

The third proportional to 81,571.50 and 179,232.75 is: 393,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,571.50 : 179,232.75 = 179,232.75 : x
  2. Step 2: Convert to fraction form
    81,571.50/179,232.75 = 179,232.75/x
  3. Step 3: Cross multiply
    81,571.50x = 179,232.75 × 179,232.75
  4. Step 4: Simplify right side
    81,571.50x = 32,124,378,672.56
  5. Step 5: Solve for x
    x = 32,124,378,672.56/81,571.50
  6. Step 6: Final answer
    x = 393,818.66

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.