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Finding the Fourth Proportional to 423.55, 635.19 and 241.03

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Solution

The fourth proportional to 423.55, 635.19 and 241.03 is: 361.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.55 : 635.19 = 241.03 : x
  2. Step 2: Convert to fraction form
    423.55/635.19 = 241.03/x
  3. Step 3: Cross multiply
    423.55x = 635.19 × 241.03
  4. Step 4: Simplify right side
    423.55x = 153,099.85
  5. Step 5: Solve for x
    x = 153,099.85/423.55
  6. Step 6: Final answer
    x = 361.47

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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.