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Finding the Third Proportional to 133,519.50 and 206,671.50

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Solution

The third proportional to 133,519.50 and 206,671.50 is: 319,901.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,519.50 : 206,671.50 = 206,671.50 : x
  2. Step 2: Convert to fraction form
    133,519.50/206,671.50 = 206,671.50/x
  3. Step 3: Cross multiply
    133,519.50x = 206,671.50 × 206,671.50
  4. Step 4: Simplify right side
    133,519.50x = 42,713,108,912.25
  5. Step 5: Solve for x
    x = 42,713,108,912.25/133,519.50
  6. Step 6: Final answer
    x = 319,901.65

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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.