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Finding the Fourth Proportional to 361.12, 499.04 and 298.88

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Solution

The fourth proportional to 361.12, 499.04 and 298.88 is: 413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.12 : 499.04 = 298.88 : x
  2. Step 2: Convert to fraction form
    361.12/499.04 = 298.88/x
  3. Step 3: Cross multiply
    361.12x = 499.04 × 298.88
  4. Step 4: Simplify right side
    361.12x = 149,153.08
  5. Step 5: Solve for x
    x = 149,153.08/361.12
  6. Step 6: Final answer
    x = 413.03

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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.