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Finding the Third Proportional to 139,434 and 306,204

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Solution

The third proportional to 139,434 and 306,204 is: 672,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,434 : 306,204 = 306,204 : x
  2. Step 2: Convert to fraction form
    139,434/306,204 = 306,204/x
  3. Step 3: Cross multiply
    139,434x = 306,204 × 306,204
  4. Step 4: Simplify right side
    139,434x = 93,760,889,616
  5. Step 5: Solve for x
    x = 93,760,889,616/139,434
  6. Step 6: Final answer
    x = 672,439.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.