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Finding the Third Proportional to 179,777 and 391,252

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Solution

The third proportional to 179,777 and 391,252 is: 851,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,777 : 391,252 = 391,252 : x
  2. Step 2: Convert to fraction form
    179,777/391,252 = 391,252/x
  3. Step 3: Cross multiply
    179,777x = 391,252 × 391,252
  4. Step 4: Simplify right side
    179,777x = 153,078,127,504
  5. Step 5: Solve for x
    x = 153,078,127,504/179,777
  6. Step 6: Final answer
    x = 851,488.94

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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.