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Finding the Fourth Proportional to 353,961.32, 488,462.82 and 203,081.96

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Solution

The fourth proportional to 353,961.32, 488,462.82 and 203,081.96 is: 280,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,961.32 : 488,462.82 = 203,081.96 : x
  2. Step 2: Convert to fraction form
    353,961.32/488,462.82 = 203,081.96/x
  3. Step 3: Cross multiply
    353,961.32x = 488,462.82 × 203,081.96
  4. Step 4: Simplify right side
    353,961.32x = 99,197,986,872.73
  5. Step 5: Solve for x
    x = 99,197,986,872.73/353,961.32
  6. Step 6: Final answer
    x = 280,250.92

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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.