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Finding the Third Proportional to 133,518 and 270,720

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Solution

The third proportional to 133,518 and 270,720 is: 548,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,518 : 270,720 = 270,720 : x
  2. Step 2: Convert to fraction form
    133,518/270,720 = 270,720/x
  3. Step 3: Cross multiply
    133,518x = 270,720 × 270,720
  4. Step 4: Simplify right side
    133,518x = 73,289,318,400
  5. Step 5: Solve for x
    x = 73,289,318,400/133,518
  6. Step 6: Final answer
    x = 548,909.65

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.