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Finding the Fourth Proportional to 234.72, 349.97 and 228.06

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Solution

The fourth proportional to 234.72, 349.97 and 228.06 is: 340.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.72 : 349.97 = 228.06 : x
  2. Step 2: Convert to fraction form
    234.72/349.97 = 228.06/x
  3. Step 3: Cross multiply
    234.72x = 349.97 × 228.06
  4. Step 4: Simplify right side
    234.72x = 79,813.02
  5. Step 5: Solve for x
    x = 79,813.02/234.72
  6. Step 6: Final answer
    x = 340.04

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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.