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Finding the Fourth Proportional to 361,767.54, 499,203.72 and 200,619.78

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Solution

The fourth proportional to 361,767.54, 499,203.72 and 200,619.78 is: 276,835.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,767.54 : 499,203.72 = 200,619.78 : x
  2. Step 2: Convert to fraction form
    361,767.54/499,203.72 = 200,619.78/x
  3. Step 3: Cross multiply
    361,767.54x = 499,203.72 × 200,619.78
  4. Step 4: Simplify right side
    361,767.54x = 100,150,140,481.58
  5. Step 5: Solve for x
    x = 100,150,140,481.58/361,767.54
  6. Step 6: Final answer
    x = 276,835.62

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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.