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Finding the Fourth Proportional to 236.12, 325.86 and 166.28

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Solution

The fourth proportional to 236.12, 325.86 and 166.28 is: 229.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.12 : 325.86 = 166.28 : x
  2. Step 2: Convert to fraction form
    236.12/325.86 = 166.28/x
  3. Step 3: Cross multiply
    236.12x = 325.86 × 166.28
  4. Step 4: Simplify right side
    236.12x = 54,184.00
  5. Step 5: Solve for x
    x = 54,184.00/236.12
  6. Step 6: Final answer
    x = 229.48

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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.