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Finding the Fourth Proportional to 414.39, 621.12 and 333.29

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Solution

The fourth proportional to 414.39, 621.12 and 333.29 is: 499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.39 : 621.12 = 333.29 : x
  2. Step 2: Convert to fraction form
    414.39/621.12 = 333.29/x
  3. Step 3: Cross multiply
    414.39x = 621.12 × 333.29
  4. Step 4: Simplify right side
    414.39x = 207,013.08
  5. Step 5: Solve for x
    x = 207,013.08/414.39
  6. Step 6: Final answer
    x = 499.56

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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.