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Finding the Fourth Proportional to 271,879.40, 407,819.10 and 227,920.70

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Solution

The fourth proportional to 271,879.40, 407,819.10 and 227,920.70 is: 341,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,879.40 : 407,819.10 = 227,920.70 : x
  2. Step 2: Convert to fraction form
    271,879.40/407,819.10 = 227,920.70/x
  3. Step 3: Cross multiply
    271,879.40x = 407,819.10 × 227,920.70
  4. Step 4: Simplify right side
    271,879.40x = 92,950,414,745.37
  5. Step 5: Solve for x
    x = 92,950,414,745.37/271,879.40
  6. Step 6: Final answer
    x = 341,881.05

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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.