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Finding the Fourth Proportional to 236.72, 353.50 and 234.17

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Solution

The fourth proportional to 236.72, 353.50 and 234.17 is: 349.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.72 : 353.50 = 234.17 : x
  2. Step 2: Convert to fraction form
    236.72/353.50 = 234.17/x
  3. Step 3: Cross multiply
    236.72x = 353.50 × 234.17
  4. Step 4: Simplify right side
    236.72x = 82,779.39
  5. Step 5: Solve for x
    x = 82,779.39/236.72
  6. Step 6: Final answer
    x = 349.70

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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.