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Finding the Fourth Proportional to 512.82, 768.62 and 295.94

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Solution

The fourth proportional to 512.82, 768.62 and 295.94 is: 443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    512.82 : 768.62 = 295.94 : x
  2. Step 2: Convert to fraction form
    512.82/768.62 = 295.94/x
  3. Step 3: Cross multiply
    512.82x = 768.62 × 295.94
  4. Step 4: Simplify right side
    512.82x = 227,465.40
  5. Step 5: Solve for x
    x = 227,465.40/512.82
  6. Step 6: Final answer
    x = 443.56

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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.