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Finding the Fourth Proportional to 399.87, 599.49 and 241.44

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Solution

The fourth proportional to 399.87, 599.49 and 241.44 is: 361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.87 : 599.49 = 241.44 : x
  2. Step 2: Convert to fraction form
    399.87/599.49 = 241.44/x
  3. Step 3: Cross multiply
    399.87x = 599.49 × 241.44
  4. Step 4: Simplify right side
    399.87x = 144,740.87
  5. Step 5: Solve for x
    x = 144,740.87/399.87
  6. Step 6: Final answer
    x = 361.97

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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.