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Finding the Fourth Proportional to 236.44, 354.80 and 149.77

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Solution

The fourth proportional to 236.44, 354.80 and 149.77 is: 224.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.44 : 354.80 = 149.77 : x
  2. Step 2: Convert to fraction form
    236.44/354.80 = 149.77/x
  3. Step 3: Cross multiply
    236.44x = 354.80 × 149.77
  4. Step 4: Simplify right side
    236.44x = 53,138.40
  5. Step 5: Solve for x
    x = 53,138.40/236.44
  6. Step 6: Final answer
    x = 224.74

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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.