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Finding the Fourth Proportional to 234.90, 349.36 and 230.04

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Solution

The fourth proportional to 234.90, 349.36 and 230.04 is: 342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.90 : 349.36 = 230.04 : x
  2. Step 2: Convert to fraction form
    234.90/349.36 = 230.04/x
  3. Step 3: Cross multiply
    234.90x = 349.36 × 230.04
  4. Step 4: Simplify right side
    234.90x = 80,366.77
  5. Step 5: Solve for x
    x = 80,366.77/234.90
  6. Step 6: Final answer
    x = 342.13

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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.