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Finding the Third Proportional to 138,651 and 283,873

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Solution

The third proportional to 138,651 and 283,873 is: 581,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,651 : 283,873 = 283,873 : x
  2. Step 2: Convert to fraction form
    138,651/283,873 = 283,873/x
  3. Step 3: Cross multiply
    138,651x = 283,873 × 283,873
  4. Step 4: Simplify right side
    138,651x = 80,583,880,129
  5. Step 5: Solve for x
    x = 80,583,880,129/138,651
  6. Step 6: Final answer
    x = 581,199.42

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.