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Finding the Fourth Proportional to 439.26, 660.10 and 233.94

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Solution

The fourth proportional to 439.26, 660.10 and 233.94 is: 351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.26 : 660.10 = 233.94 : x
  2. Step 2: Convert to fraction form
    439.26/660.10 = 233.94/x
  3. Step 3: Cross multiply
    439.26x = 660.10 × 233.94
  4. Step 4: Simplify right side
    439.26x = 154,423.79
  5. Step 5: Solve for x
    x = 154,423.79/439.26
  6. Step 6: Final answer
    x = 351.55

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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.