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Finding the Fourth Proportional to 288.15, 397.67 and 241.44

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Solution

The fourth proportional to 288.15, 397.67 and 241.44 is: 333.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288.15 : 397.67 = 241.44 : x
  2. Step 2: Convert to fraction form
    288.15/397.67 = 241.44/x
  3. Step 3: Cross multiply
    288.15x = 397.67 × 241.44
  4. Step 4: Simplify right side
    288.15x = 96,013.44
  5. Step 5: Solve for x
    x = 96,013.44/288.15
  6. Step 6: Final answer
    x = 333.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.