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Finding the Fourth Proportional to 533.91, 801.61 and 274.13

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Solution

The fourth proportional to 533.91, 801.61 and 274.13 is: 411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    533.91 : 801.61 = 274.13 : x
  2. Step 2: Convert to fraction form
    533.91/801.61 = 274.13/x
  3. Step 3: Cross multiply
    533.91x = 801.61 × 274.13
  4. Step 4: Simplify right side
    533.91x = 219,743.66
  5. Step 5: Solve for x
    x = 219,743.66/533.91
  6. Step 6: Final answer
    x = 411.58

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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.