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Finding the Fourth Proportional to 361.45, 539.55 and 334.75

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Solution

The fourth proportional to 361.45, 539.55 and 334.75 is: 499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.45 : 539.55 = 334.75 : x
  2. Step 2: Convert to fraction form
    361.45/539.55 = 334.75/x
  3. Step 3: Cross multiply
    361.45x = 539.55 × 334.75
  4. Step 4: Simplify right side
    361.45x = 180,613.53
  5. Step 5: Solve for x
    x = 180,613.53/361.45
  6. Step 6: Final answer
    x = 499.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.