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Finding the Third Proportional to 299,418.75 and 447,945.75

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Solution

The third proportional to 299,418.75 and 447,945.75 is: 670,149.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,418.75 : 447,945.75 = 447,945.75 : x
  2. Step 2: Convert to fraction form
    299,418.75/447,945.75 = 447,945.75/x
  3. Step 3: Cross multiply
    299,418.75x = 447,945.75 × 447,945.75
  4. Step 4: Simplify right side
    299,418.75x = 200,655,394,943.06
  5. Step 5: Solve for x
    x = 200,655,394,943.06/299,418.75
  6. Step 6: Final answer
    x = 670,149.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.