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Finding the Fourth Proportional to 241.21, 330.70 and 236.83

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Solution

The fourth proportional to 241.21, 330.70 and 236.83 is: 324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.21 : 330.70 = 236.83 : x
  2. Step 2: Convert to fraction form
    241.21/330.70 = 236.83/x
  3. Step 3: Cross multiply
    241.21x = 330.70 × 236.83
  4. Step 4: Simplify right side
    241.21x = 78,318.50
  5. Step 5: Solve for x
    x = 78,318.50/241.21
  6. Step 6: Final answer
    x = 324.70

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.