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Finding the Fourth Proportional to 234.63, 324.39 and 224.43

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Solution

The fourth proportional to 234.63, 324.39 and 224.43 is: 310.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.63 : 324.39 = 224.43 : x
  2. Step 2: Convert to fraction form
    234.63/324.39 = 224.43/x
  3. Step 3: Cross multiply
    234.63x = 324.39 × 224.43
  4. Step 4: Simplify right side
    234.63x = 72,802.85
  5. Step 5: Solve for x
    x = 72,802.85/234.63
  6. Step 6: Final answer
    x = 310.29

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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.