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Finding the Fourth Proportional to 361.36, 499.14 and 299.44

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Solution

The fourth proportional to 361.36, 499.14 and 299.44 is: 413.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.36 : 499.14 = 299.44 : x
  2. Step 2: Convert to fraction form
    361.36/499.14 = 299.44/x
  3. Step 3: Cross multiply
    361.36x = 499.14 × 299.44
  4. Step 4: Simplify right side
    361.36x = 149,462.48
  5. Step 5: Solve for x
    x = 149,462.48/361.36
  6. Step 6: Final answer
    x = 413.61

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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.