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Finding the Third Proportional to 272,218.50 and 408,597.75

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Solution

The third proportional to 272,218.50 and 408,597.75 is: 613,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,218.50 : 408,597.75 = 408,597.75 : x
  2. Step 2: Convert to fraction form
    272,218.50/408,597.75 = 408,597.75/x
  3. Step 3: Cross multiply
    272,218.50x = 408,597.75 × 408,597.75
  4. Step 4: Simplify right side
    272,218.50x = 166,952,121,305.06
  5. Step 5: Solve for x
    x = 166,952,121,305.06/272,218.50
  6. Step 6: Final answer
    x = 613,301.89

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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.