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Finding the Fourth Proportional to 381.80, 574.94 and 333.62

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Solution

The fourth proportional to 381.80, 574.94 and 333.62 is: 502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.80 : 574.94 = 333.62 : x
  2. Step 2: Convert to fraction form
    381.80/574.94 = 333.62/x
  3. Step 3: Cross multiply
    381.80x = 574.94 × 333.62
  4. Step 4: Simplify right side
    381.80x = 191,811.48
  5. Step 5: Solve for x
    x = 191,811.48/381.80
  6. Step 6: Final answer
    x = 502.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.