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Finding the Fourth Proportional to 241.09, 361.11 and 213.75

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Solution

The fourth proportional to 241.09, 361.11 and 213.75 is: 320.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.09 : 361.11 = 213.75 : x
  2. Step 2: Convert to fraction form
    241.09/361.11 = 213.75/x
  3. Step 3: Cross multiply
    241.09x = 361.11 × 213.75
  4. Step 4: Simplify right side
    241.09x = 77,187.26
  5. Step 5: Solve for x
    x = 77,187.26/241.09
  6. Step 6: Final answer
    x = 320.16

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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.