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Finding the Fourth Proportional to 234.11, 323.21 and 145.62

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Solution

The fourth proportional to 234.11, 323.21 and 145.62 is: 201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.11 : 323.21 = 145.62 : x
  2. Step 2: Convert to fraction form
    234.11/323.21 = 145.62/x
  3. Step 3: Cross multiply
    234.11x = 323.21 × 145.62
  4. Step 4: Simplify right side
    234.11x = 47,066.20
  5. Step 5: Solve for x
    x = 47,066.20/234.11
  6. Step 6: Final answer
    x = 201.04

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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.