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Finding the Fourth Proportional to 353,956.32, 488,455.92 and 203,076.96

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Solution

The fourth proportional to 353,956.32, 488,455.92 and 203,076.96 is: 280,244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,956.32 : 488,455.92 = 203,076.96 : x
  2. Step 2: Convert to fraction form
    353,956.32/488,455.92 = 203,076.96/x
  3. Step 3: Cross multiply
    353,956.32x = 488,455.92 × 203,076.96
  4. Step 4: Simplify right side
    353,956.32x = 99,194,143,327.60
  5. Step 5: Solve for x
    x = 99,194,143,327.60/353,956.32
  6. Step 6: Final answer
    x = 280,244.02

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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.