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Finding the Fourth Proportional to 234.14, 323.70 and 223.94

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Solution

The fourth proportional to 234.14, 323.70 and 223.94 is: 309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.14 : 323.70 = 223.94 : x
  2. Step 2: Convert to fraction form
    234.14/323.70 = 223.94/x
  3. Step 3: Cross multiply
    234.14x = 323.70 × 223.94
  4. Step 4: Simplify right side
    234.14x = 72,489.38
  5. Step 5: Solve for x
    x = 72,489.38/234.14
  6. Step 6: Final answer
    x = 309.60

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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.