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Finding the Fourth Proportional to 236.36, 354.18 and 188.48

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Solution

The fourth proportional to 236.36, 354.18 and 188.48 is: 282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.36 : 354.18 = 188.48 : x
  2. Step 2: Convert to fraction form
    236.36/354.18 = 188.48/x
  3. Step 3: Cross multiply
    236.36x = 354.18 × 188.48
  4. Step 4: Simplify right side
    236.36x = 66,755.85
  5. Step 5: Solve for x
    x = 66,755.85/236.36
  6. Step 6: Final answer
    x = 282.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.