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Finding the Fourth Proportional to 366.21, 552.11 and 361.35

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Solution

The fourth proportional to 366.21, 552.11 and 361.35 is: 544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.21 : 552.11 = 361.35 : x
  2. Step 2: Convert to fraction form
    366.21/552.11 = 361.35/x
  3. Step 3: Cross multiply
    366.21x = 552.11 × 361.35
  4. Step 4: Simplify right side
    366.21x = 199,503.14
  5. Step 5: Solve for x
    x = 199,503.14/366.21
  6. Step 6: Final answer
    x = 544.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.