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Finding the Fourth Proportional to 533.88, 736.14 and 394.20

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Solution

The fourth proportional to 533.88, 736.14 and 394.20 is: 543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.88 : 736.14 = 394.20 : x
  2. Step 2: Convert to fraction form
    533.88/736.14 = 394.20/x
  3. Step 3: Cross multiply
    533.88x = 736.14 × 394.20
  4. Step 4: Simplify right side
    533.88x = 290,186.39
  5. Step 5: Solve for x
    x = 290,186.39/533.88
  6. Step 6: Final answer
    x = 543.54

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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.