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Finding the Fourth Proportional to 234.79, 350.44 and 208.87

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Solution

The fourth proportional to 234.79, 350.44 and 208.87 is: 311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.79 : 350.44 = 208.87 : x
  2. Step 2: Convert to fraction form
    234.79/350.44 = 208.87/x
  3. Step 3: Cross multiply
    234.79x = 350.44 × 208.87
  4. Step 4: Simplify right side
    234.79x = 73,195.00
  5. Step 5: Solve for x
    x = 73,195.00/234.79
  6. Step 6: Final answer
    x = 311.75

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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.