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Finding the Fourth Proportional to 241.35, 361.78 and 154.43

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Solution

The fourth proportional to 241.35, 361.78 and 154.43 is: 231.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    241.35 : 361.78 = 154.43 : x
  2. Step 2: Convert to fraction form
    241.35/361.78 = 154.43/x
  3. Step 3: Cross multiply
    241.35x = 361.78 × 154.43
  4. Step 4: Simplify right side
    241.35x = 55,870.78
  5. Step 5: Solve for x
    x = 55,870.78/241.35
  6. Step 6: Final answer
    x = 231.50

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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.