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Finding the Third Proportional to 147,991.50 and 319,628.25

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Solution

The third proportional to 147,991.50 and 319,628.25 is: 690,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,991.50 : 319,628.25 = 319,628.25 : x
  2. Step 2: Convert to fraction form
    147,991.50/319,628.25 = 319,628.25/x
  3. Step 3: Cross multiply
    147,991.50x = 319,628.25 × 319,628.25
  4. Step 4: Simplify right side
    147,991.50x = 102,162,218,198.06
  5. Step 5: Solve for x
    x = 102,162,218,198.06/147,991.50
  6. Step 6: Final answer
    x = 690,324.91

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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.