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Finding the Fourth Proportional to 263,784.87, 395,262.38 and 203,959.49

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Solution

The fourth proportional to 263,784.87, 395,262.38 and 203,959.49 is: 305,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,784.87 : 395,262.38 = 203,959.49 : x
  2. Step 2: Convert to fraction form
    263,784.87/395,262.38 = 203,959.49/x
  3. Step 3: Cross multiply
    263,784.87x = 395,262.38 × 203,959.49
  4. Step 4: Simplify right side
    263,784.87x = 80,617,511,974.57
  5. Step 5: Solve for x
    x = 80,617,511,974.57/263,784.87
  6. Step 6: Final answer
    x = 305,618.41

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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.