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Finding the Fourth Proportional to 275,396.49, 379,832.90 and 199,201.41

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Solution

The fourth proportional to 275,396.49, 379,832.90 and 199,201.41 is: 274,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,396.49 : 379,832.90 = 199,201.41 : x
  2. Step 2: Convert to fraction form
    275,396.49/379,832.90 = 199,201.41/x
  3. Step 3: Cross multiply
    275,396.49x = 379,832.90 × 199,201.41
  4. Step 4: Simplify right side
    275,396.49x = 75,663,248,248.38
  5. Step 5: Solve for x
    x = 75,663,248,248.38/275,396.49
  6. Step 6: Final answer
    x = 274,742.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.