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Finding the Fourth Proportional to 401.03, 553.21 and 241.43

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Solution

The fourth proportional to 401.03, 553.21 and 241.43 is: 333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.03 : 553.21 = 241.43 : x
  2. Step 2: Convert to fraction form
    401.03/553.21 = 241.43/x
  3. Step 3: Cross multiply
    401.03x = 553.21 × 241.43
  4. Step 4: Simplify right side
    401.03x = 133,559.48
  5. Step 5: Solve for x
    x = 133,559.48/401.03
  6. Step 6: Final answer
    x = 333.04

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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.