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Finding the Fourth Proportional to 234.27, 349.76 and 211.23

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Solution

The fourth proportional to 234.27, 349.76 and 211.23 is: 315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.27 : 349.76 = 211.23 : x
  2. Step 2: Convert to fraction form
    234.27/349.76 = 211.23/x
  3. Step 3: Cross multiply
    234.27x = 349.76 × 211.23
  4. Step 4: Simplify right side
    234.27x = 73,880.33
  5. Step 5: Solve for x
    x = 73,880.33/234.27
  6. Step 6: Final answer
    x = 315.36

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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.