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Finding the Fourth Proportional to 353,958.32, 488,458.68 and 203,078.96

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Solution

The fourth proportional to 353,958.32, 488,458.68 and 203,078.96 is: 280,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,958.32 : 488,458.68 = 203,078.96 : x
  2. Step 2: Convert to fraction form
    353,958.32/488,458.68 = 203,078.96/x
  3. Step 3: Cross multiply
    353,958.32x = 488,458.68 × 203,078.96
  4. Step 4: Simplify right side
    353,958.32x = 99,195,680,737.37
  5. Step 5: Solve for x
    x = 99,195,680,737.37/353,958.32
  6. Step 6: Final answer
    x = 280,246.78

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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.