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Finding the Fourth Proportional to 262,618.62, 393,952.70 and 203,520.48

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Solution

The fourth proportional to 262,618.62, 393,952.70 and 203,520.48 is: 305,299.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,618.62 : 393,952.70 = 203,520.48 : x
  2. Step 2: Convert to fraction form
    262,618.62/393,952.70 = 203,520.48/x
  3. Step 3: Cross multiply
    262,618.62x = 393,952.70 × 203,520.48
  4. Step 4: Simplify right side
    262,618.62x = 80,177,442,601.30
  5. Step 5: Solve for x
    x = 80,177,442,601.30/262,618.62
  6. Step 6: Final answer
    x = 305,299.92

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1.5x scale

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.