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Finding the Fourth Proportional to 236.30, 326.04 and 143.02

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Solution

The fourth proportional to 236.30, 326.04 and 143.02 is: 197.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.30 : 326.04 = 143.02 : x
  2. Step 2: Convert to fraction form
    236.30/326.04 = 143.02/x
  3. Step 3: Cross multiply
    236.30x = 326.04 × 143.02
  4. Step 4: Simplify right side
    236.30x = 46,630.24
  5. Step 5: Solve for x
    x = 46,630.24/236.30
  6. Step 6: Final answer
    x = 197.33

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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.