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Finding the Fourth Proportional to 236.41, 325.54 and 231.02

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Solution

The fourth proportional to 236.41, 325.54 and 231.02 is: 318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.41 : 325.54 = 231.02 : x
  2. Step 2: Convert to fraction form
    236.41/325.54 = 231.02/x
  3. Step 3: Cross multiply
    236.41x = 325.54 × 231.02
  4. Step 4: Simplify right side
    236.41x = 75,207.47
  5. Step 5: Solve for x
    x = 75,207.47/236.41
  6. Step 6: Final answer
    x = 318.12

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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.