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Finding the Fourth Proportional to 379,793.10, 569,776.05 and 221,940.30

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Solution

The fourth proportional to 379,793.10, 569,776.05 and 221,940.30 is: 332,960.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,793.10 : 569,776.05 = 221,940.30 : x
  2. Step 2: Convert to fraction form
    379,793.10/569,776.05 = 221,940.30/x
  3. Step 3: Cross multiply
    379,793.10x = 569,776.05 × 221,940.30
  4. Step 4: Simplify right side
    379,793.10x = 126,456,267,469.82
  5. Step 5: Solve for x
    x = 126,456,267,469.82/379,793.10
  6. Step 6: Final answer
    x = 332,960.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.