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Finding the Third Proportional to 206,412.75 and 305,787.38

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Solution

The third proportional to 206,412.75 and 305,787.38 is: 453,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,412.75 : 305,787.38 = 305,787.38 : x
  2. Step 2: Convert to fraction form
    206,412.75/305,787.38 = 305,787.38/x
  3. Step 3: Cross multiply
    206,412.75x = 305,787.38 × 305,787.38
  4. Step 4: Simplify right side
    206,412.75x = 93,505,918,709.39
  5. Step 5: Solve for x
    x = 93,505,918,709.39/206,412.75
  6. Step 6: Final answer
    x = 453,004.57

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.