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Finding the Fourth Proportional to 225.26, 335.91 and 223.21

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Solution

The fourth proportional to 225.26, 335.91 and 223.21 is: 332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.26 : 335.91 = 223.21 : x
  2. Step 2: Convert to fraction form
    225.26/335.91 = 223.21/x
  3. Step 3: Cross multiply
    225.26x = 335.91 × 223.21
  4. Step 4: Simplify right side
    225.26x = 74,976.79
  5. Step 5: Solve for x
    x = 74,976.79/225.26
  6. Step 6: Final answer
    x = 332.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.