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Finding the Fourth Proportional to 439.02, 658.62 and 233.10

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Solution

The fourth proportional to 439.02, 658.62 and 233.10 is: 349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.02 : 658.62 = 233.10 : x
  2. Step 2: Convert to fraction form
    439.02/658.62 = 233.10/x
  3. Step 3: Cross multiply
    439.02x = 658.62 × 233.10
  4. Step 4: Simplify right side
    439.02x = 153,524.32
  5. Step 5: Solve for x
    x = 153,524.32/439.02
  6. Step 6: Final answer
    x = 349.70

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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.