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Finding the Fourth Proportional to 236.78, 353.34 and 234.98

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Solution

The fourth proportional to 236.78, 353.34 and 234.98 is: 350.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.78 : 353.34 = 234.98 : x
  2. Step 2: Convert to fraction form
    236.78/353.34 = 234.98/x
  3. Step 3: Cross multiply
    236.78x = 353.34 × 234.98
  4. Step 4: Simplify right side
    236.78x = 83,026.66
  5. Step 5: Solve for x
    x = 83,026.66/236.78
  6. Step 6: Final answer
    x = 350.65

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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.