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Finding the Fourth Proportional to 234.18, 349.65 and 201.65

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Solution

The fourth proportional to 234.18, 349.65 and 201.65 is: 301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.18 : 349.65 = 201.65 : x
  2. Step 2: Convert to fraction form
    234.18/349.65 = 201.65/x
  3. Step 3: Cross multiply
    234.18x = 349.65 × 201.65
  4. Step 4: Simplify right side
    234.18x = 70,505.17
  5. Step 5: Solve for x
    x = 70,505.17/234.18
  6. Step 6: Final answer
    x = 301.07

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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.