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Finding the Fourth Proportional to 234.97, 350.46 and 214.18

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Solution

The fourth proportional to 234.97, 350.46 and 214.18 is: 319.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.97 : 350.46 = 214.18 : x
  2. Step 2: Convert to fraction form
    234.97/350.46 = 214.18/x
  3. Step 3: Cross multiply
    234.97x = 350.46 × 214.18
  4. Step 4: Simplify right side
    234.97x = 75,060.65
  5. Step 5: Solve for x
    x = 75,060.65/234.97
  6. Step 6: Final answer
    x = 319.45

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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.