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Finding the Third Proportional to 120,042 and 261,682

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Solution

The third proportional to 120,042 and 261,682 is: 570,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,042 : 261,682 = 261,682 : x
  2. Step 2: Convert to fraction form
    120,042/261,682 = 261,682/x
  3. Step 3: Cross multiply
    120,042x = 261,682 × 261,682
  4. Step 4: Simplify right side
    120,042x = 68,477,469,124
  5. Step 5: Solve for x
    x = 68,477,469,124/120,042
  6. Step 6: Final answer
    x = 570,445.92

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.