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Finding the Third Proportional to 81,817.50 and 176,545.50

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Solution

The third proportional to 81,817.50 and 176,545.50 is: 380,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,817.50 : 176,545.50 = 176,545.50 : x
  2. Step 2: Convert to fraction form
    81,817.50/176,545.50 = 176,545.50/x
  3. Step 3: Cross multiply
    81,817.50x = 176,545.50 × 176,545.50
  4. Step 4: Simplify right side
    81,817.50x = 31,168,313,570.25
  5. Step 5: Solve for x
    x = 31,168,313,570.25/81,817.50
  6. Step 6: Final answer
    x = 380,949.23

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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.