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Finding the Fourth Proportional to 439.14, 658.02 and 222.32

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Solution

The fourth proportional to 439.14, 658.02 and 222.32 is: 333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.14 : 658.02 = 222.32 : x
  2. Step 2: Convert to fraction form
    439.14/658.02 = 222.32/x
  3. Step 3: Cross multiply
    439.14x = 658.02 × 222.32
  4. Step 4: Simplify right side
    439.14x = 146,291.01
  5. Step 5: Solve for x
    x = 146,291.01/439.14
  6. Step 6: Final answer
    x = 333.13

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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.