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Finding the Fourth Proportional to 996.52, 1,494.96 and 338.46

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Solution

The fourth proportional to 996.52, 1,494.96 and 338.46 is: 507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    996.52 : 1,494.96 = 338.46 : x
  2. Step 2: Convert to fraction form
    996.52/1,494.96 = 338.46/x
  3. Step 3: Cross multiply
    996.52x = 1,494.96 × 338.46
  4. Step 4: Simplify right side
    996.52x = 505,984.16
  5. Step 5: Solve for x
    x = 505,984.16/996.52
  6. Step 6: Final answer
    x = 507.75

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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.