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Finding the Fourth Proportional to 338.31, 507.06 and 200.97

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Solution

The fourth proportional to 338.31, 507.06 and 200.97 is: 301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.31 : 507.06 = 200.97 : x
  2. Step 2: Convert to fraction form
    338.31/507.06 = 200.97/x
  3. Step 3: Cross multiply
    338.31x = 507.06 × 200.97
  4. Step 4: Simplify right side
    338.31x = 101,903.85
  5. Step 5: Solve for x
    x = 101,903.85/338.31
  6. Step 6: Final answer
    x = 301.21

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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.