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Finding the Fourth Proportional to 533.58, 800.19 and 338.79

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Solution

The fourth proportional to 533.58, 800.19 and 338.79 is: 508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.58 : 800.19 = 338.79 : x
  2. Step 2: Convert to fraction form
    533.58/800.19 = 338.79/x
  3. Step 3: Cross multiply
    533.58x = 800.19 × 338.79
  4. Step 4: Simplify right side
    533.58x = 271,096.37
  5. Step 5: Solve for x
    x = 271,096.37/533.58
  6. Step 6: Final answer
    x = 508.07

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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.