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Finding the Fourth Proportional to 533.10, 799.78 and 167.89

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Solution

The fourth proportional to 533.10, 799.78 and 167.89 is: 251.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.10 : 799.78 = 167.89 : x
  2. Step 2: Convert to fraction form
    533.10/799.78 = 167.89/x
  3. Step 3: Cross multiply
    533.10x = 799.78 × 167.89
  4. Step 4: Simplify right side
    533.10x = 134,273.27
  5. Step 5: Solve for x
    x = 134,273.27/533.10
  6. Step 6: Final answer
    x = 251.87

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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.