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Finding the Fourth Proportional to 262,617.62, 393,951.20 and 203,519.48

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Solution

The fourth proportional to 262,617.62, 393,951.20 and 203,519.48 is: 305,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,617.62 : 393,951.20 = 203,519.48 : x
  2. Step 2: Convert to fraction form
    262,617.62/393,951.20 = 203,519.48/x
  3. Step 3: Cross multiply
    262,617.62x = 393,951.20 × 203,519.48
  4. Step 4: Simplify right side
    262,617.62x = 80,176,740,382.02
  5. Step 5: Solve for x
    x = 80,176,740,382.02/262,617.62
  6. Step 6: Final answer
    x = 305,298.41

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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.