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Finding the Fourth Proportional to 493.27, 738.27 and 273.55

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Solution

The fourth proportional to 493.27, 738.27 and 273.55 is: 409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.27 : 738.27 = 273.55 : x
  2. Step 2: Convert to fraction form
    493.27/738.27 = 273.55/x
  3. Step 3: Cross multiply
    493.27x = 738.27 × 273.55
  4. Step 4: Simplify right side
    493.27x = 201,953.76
  5. Step 5: Solve for x
    x = 201,953.76/493.27
  6. Step 6: Final answer
    x = 409.42

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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.