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Finding the Fourth Proportional to 254.45, 380.43 and 241.98

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Solution

The fourth proportional to 254.45, 380.43 and 241.98 is: 361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.45 : 380.43 = 241.98 : x
  2. Step 2: Convert to fraction form
    254.45/380.43 = 241.98/x
  3. Step 3: Cross multiply
    254.45x = 380.43 × 241.98
  4. Step 4: Simplify right side
    254.45x = 92,056.45
  5. Step 5: Solve for x
    x = 92,056.45/254.45
  6. Step 6: Final answer
    x = 361.79

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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.