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Finding the Fourth Proportional to 356,401.92, 491,850.84 and 203,481.48

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Solution

The fourth proportional to 356,401.92, 491,850.84 and 203,481.48 is: 280,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,401.92 : 491,850.84 = 203,481.48 : x
  2. Step 2: Convert to fraction form
    356,401.92/491,850.84 = 203,481.48/x
  3. Step 3: Cross multiply
    356,401.92x = 491,850.84 × 203,481.48
  4. Step 4: Simplify right side
    356,401.92x = 100,082,536,862.44
  5. Step 5: Solve for x
    x = 100,082,536,862.44/356,401.92
  6. Step 6: Final answer
    x = 280,813.69

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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.