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Finding the Fourth Proportional to 493.38, 675.93 and 474.92

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Solution

The fourth proportional to 493.38, 675.93 and 474.92 is: 650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.38 : 675.93 = 474.92 : x
  2. Step 2: Convert to fraction form
    493.38/675.93 = 474.92/x
  3. Step 3: Cross multiply
    493.38x = 675.93 × 474.92
  4. Step 4: Simplify right side
    493.38x = 321,012.68
  5. Step 5: Solve for x
    x = 321,012.68/493.38
  6. Step 6: Final answer
    x = 650.64

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.