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Finding the Fourth Proportional to 537.17, 805.79 and 171.88

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Solution

The fourth proportional to 537.17, 805.79 and 171.88 is: 257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.17 : 805.79 = 171.88 : x
  2. Step 2: Convert to fraction form
    537.17/805.79 = 171.88/x
  3. Step 3: Cross multiply
    537.17x = 805.79 × 171.88
  4. Step 4: Simplify right side
    537.17x = 138,497.60
  5. Step 5: Solve for x
    x = 138,497.60/537.17
  6. Step 6: Final answer
    x = 257.83

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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.