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Finding the Fourth Proportional to 378.40, 566.52 and 241.60

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Solution

The fourth proportional to 378.40, 566.52 and 241.60 is: 361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.40 : 566.52 = 241.60 : x
  2. Step 2: Convert to fraction form
    378.40/566.52 = 241.60/x
  3. Step 3: Cross multiply
    378.40x = 566.52 × 241.60
  4. Step 4: Simplify right side
    378.40x = 136,871.23
  5. Step 5: Solve for x
    x = 136,871.23/378.40
  6. Step 6: Final answer
    x = 361.71

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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.