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Finding the Third Proportional to 119,478 and 261,906

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Solution

The third proportional to 119,478 and 261,906 is: 574,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,478 : 261,906 = 261,906 : x
  2. Step 2: Convert to fraction form
    119,478/261,906 = 261,906/x
  3. Step 3: Cross multiply
    119,478x = 261,906 × 261,906
  4. Step 4: Simplify right side
    119,478x = 68,594,752,836
  5. Step 5: Solve for x
    x = 68,594,752,836/119,478
  6. Step 6: Final answer
    x = 574,120.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.