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Finding the Fourth Proportional to 533.73, 800.72 and 259.75

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Solution

The fourth proportional to 533.73, 800.72 and 259.75 is: 389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.73 : 800.72 = 259.75 : x
  2. Step 2: Convert to fraction form
    533.73/800.72 = 259.75/x
  3. Step 3: Cross multiply
    533.73x = 800.72 × 259.75
  4. Step 4: Simplify right side
    533.73x = 207,987.02
  5. Step 5: Solve for x
    x = 207,987.02/533.73
  6. Step 6: Final answer
    x = 389.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.