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Finding the Fourth Proportional to 414.44, 571.24 and 331.16

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Solution

The fourth proportional to 414.44, 571.24 and 331.16 is: 456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.44 : 571.24 = 331.16 : x
  2. Step 2: Convert to fraction form
    414.44/571.24 = 331.16/x
  3. Step 3: Cross multiply
    414.44x = 571.24 × 331.16
  4. Step 4: Simplify right side
    414.44x = 189,171.84
  5. Step 5: Solve for x
    x = 189,171.84/414.44
  6. Step 6: Final answer
    x = 456.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.