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Finding the Fourth Proportional to 407.26, 561.81 and 241.41

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Solution

The fourth proportional to 407.26, 561.81 and 241.41 is: 333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    407.26 : 561.81 = 241.41 : x
  2. Step 2: Convert to fraction form
    407.26/561.81 = 241.41/x
  3. Step 3: Cross multiply
    407.26x = 561.81 × 241.41
  4. Step 4: Simplify right side
    407.26x = 135,626.55
  5. Step 5: Solve for x
    x = 135,626.55/407.26
  6. Step 6: Final answer
    x = 333.02

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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.