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Finding the Fourth Proportional to 236.04, 323.61 and 231.72

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Solution

The fourth proportional to 236.04, 323.61 and 231.72 is: 317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.04 : 323.61 = 231.72 : x
  2. Step 2: Convert to fraction form
    236.04/323.61 = 231.72/x
  3. Step 3: Cross multiply
    236.04x = 323.61 × 231.72
  4. Step 4: Simplify right side
    236.04x = 74,986.91
  5. Step 5: Solve for x
    x = 74,986.91/236.04
  6. Step 6: Final answer
    x = 317.69

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.