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Finding the Third Proportional to 203,668 and 308,889

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Solution

The third proportional to 203,668 and 308,889 is: 468,470.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,668 : 308,889 = 308,889 : x
  2. Step 2: Convert to fraction form
    203,668/308,889 = 308,889/x
  3. Step 3: Cross multiply
    203,668x = 308,889 × 308,889
  4. Step 4: Simplify right side
    203,668x = 95,412,414,321
  5. Step 5: Solve for x
    x = 95,412,414,321/203,668
  6. Step 6: Final answer
    x = 468,470.33

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.