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Finding the Fourth Proportional to 533.03, 735.21 and 523.31

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Solution

The fourth proportional to 533.03, 735.21 and 523.31 is: 721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.03 : 735.21 = 523.31 : x
  2. Step 2: Convert to fraction form
    533.03/735.21 = 523.31/x
  3. Step 3: Cross multiply
    533.03x = 735.21 × 523.31
  4. Step 4: Simplify right side
    533.03x = 384,739.07
  5. Step 5: Solve for x
    x = 384,739.07/533.03
  6. Step 6: Final answer
    x = 721.80

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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.