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Finding the Fourth Proportional to 533.54, 736.23 and 393.73

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Solution

The fourth proportional to 533.54, 736.23 and 393.73 is: 543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.54 : 736.23 = 393.73 : x
  2. Step 2: Convert to fraction form
    533.54/736.23 = 393.73/x
  3. Step 3: Cross multiply
    533.54x = 736.23 × 393.73
  4. Step 4: Simplify right side
    533.54x = 289,878.66
  5. Step 5: Solve for x
    x = 289,878.66/533.54
  6. Step 6: Final answer
    x = 543.31

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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.