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Finding the Fourth Proportional to 493.30, 739.74 and 262.14

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Solution

The fourth proportional to 493.30, 739.74 and 262.14 is: 393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.30 : 739.74 = 262.14 : x
  2. Step 2: Convert to fraction form
    493.30/739.74 = 262.14/x
  3. Step 3: Cross multiply
    493.30x = 739.74 × 262.14
  4. Step 4: Simplify right side
    493.30x = 193,911.55
  5. Step 5: Solve for x
    x = 193,911.55/493.30
  6. Step 6: Final answer
    x = 393.09

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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.