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Finding the Fourth Proportional to 236.77, 326.74 and 131.85

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Solution

The fourth proportional to 236.77, 326.74 and 131.85 is: 181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.77 : 326.74 = 131.85 : x
  2. Step 2: Convert to fraction form
    236.77/326.74 = 131.85/x
  3. Step 3: Cross multiply
    236.77x = 326.74 × 131.85
  4. Step 4: Simplify right side
    236.77x = 43,080.67
  5. Step 5: Solve for x
    x = 43,080.67/236.77
  6. Step 6: Final answer
    x = 181.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.