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Finding the Fourth Proportional to 236.12, 353.72 and 144.59

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Solution

The fourth proportional to 236.12, 353.72 and 144.59 is: 216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.12 : 353.72 = 144.59 : x
  2. Step 2: Convert to fraction form
    236.12/353.72 = 144.59/x
  3. Step 3: Cross multiply
    236.12x = 353.72 × 144.59
  4. Step 4: Simplify right side
    236.12x = 51,141.88
  5. Step 5: Solve for x
    x = 51,141.88/236.12
  6. Step 6: Final answer
    x = 216.60

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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.