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Finding the Fourth Proportional to 533.20, 795.20 and 481.36

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Solution

The fourth proportional to 533.20, 795.20 and 481.36 is: 717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.20 : 795.20 = 481.36 : x
  2. Step 2: Convert to fraction form
    533.20/795.20 = 481.36/x
  3. Step 3: Cross multiply
    533.20x = 795.20 × 481.36
  4. Step 4: Simplify right side
    533.20x = 382,777.47
  5. Step 5: Solve for x
    x = 382,777.47/533.20
  6. Step 6: Final answer
    x = 717.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.