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Finding the Fourth Proportional to 236.95, 354.90 and 168.77

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Solution

The fourth proportional to 236.95, 354.90 and 168.77 is: 252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.95 : 354.90 = 168.77 : x
  2. Step 2: Convert to fraction form
    236.95/354.90 = 168.77/x
  3. Step 3: Cross multiply
    236.95x = 354.90 × 168.77
  4. Step 4: Simplify right side
    236.95x = 59,896.47
  5. Step 5: Solve for x
    x = 59,896.47/236.95
  6. Step 6: Final answer
    x = 252.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.