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Finding the Third Proportional to 200,867 and 311,027

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Solution

The third proportional to 200,867 and 311,027 is: 481,601.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,867 : 311,027 = 311,027 : x
  2. Step 2: Convert to fraction form
    200,867/311,027 = 311,027/x
  3. Step 3: Cross multiply
    200,867x = 311,027 × 311,027
  4. Step 4: Simplify right side
    200,867x = 96,737,794,729
  5. Step 5: Solve for x
    x = 96,737,794,729/200,867
  6. Step 6: Final answer
    x = 481,601.23

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.