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Finding the Fourth Proportional to 236.09, 354.36 and 144.96

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Solution

The fourth proportional to 236.09, 354.36 and 144.96 is: 217.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.09 : 354.36 = 144.96 : x
  2. Step 2: Convert to fraction form
    236.09/354.36 = 144.96/x
  3. Step 3: Cross multiply
    236.09x = 354.36 × 144.96
  4. Step 4: Simplify right side
    236.09x = 51,369.08
  5. Step 5: Solve for x
    x = 51,369.08/236.09
  6. Step 6: Final answer
    x = 217.58

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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.