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Finding the Fourth Proportional to 236.23, 326 and 131.33

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Solution

The fourth proportional to 236.23, 326 and 131.33 is: 181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.23 : 326 = 131.33 : x
  2. Step 2: Convert to fraction form
    236.23/326 = 131.33/x
  3. Step 3: Cross multiply
    236.23x = 326 × 131.33
  4. Step 4: Simplify right side
    236.23x = 42,813.58
  5. Step 5: Solve for x
    x = 42,813.58/236.23
  6. Step 6: Final answer
    x = 181.24

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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.