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Finding the Fourth Proportional to 494.27, 739.80 and 262.83

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Solution

The fourth proportional to 494.27, 739.80 and 262.83 is: 393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.27 : 739.80 = 262.83 : x
  2. Step 2: Convert to fraction form
    494.27/739.80 = 262.83/x
  3. Step 3: Cross multiply
    494.27x = 739.80 × 262.83
  4. Step 4: Simplify right side
    494.27x = 194,441.63
  5. Step 5: Solve for x
    x = 194,441.63/494.27
  6. Step 6: Final answer
    x = 393.40

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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.