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Finding the Fourth Proportional to 493, 738.94 and 276.72

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Solution

The fourth proportional to 493, 738.94 and 276.72 is: 414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    493 : 738.94 = 276.72 : x
  2. Step 2: Convert to fraction form
    493/738.94 = 276.72/x
  3. Step 3: Cross multiply
    493x = 738.94 × 276.72
  4. Step 4: Simplify right side
    493x = 204,479.48
  5. Step 5: Solve for x
    x = 204,479.48/493
  6. Step 6: Final answer
    x = 414.77

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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.