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Finding the Fourth Proportional to 338, 507.09 and 167

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Solution

The fourth proportional to 338, 507.09 and 167 is: 250.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    338 : 507.09 = 167 : x
  2. Step 2: Convert to fraction form
    338/507.09 = 167/x
  3. Step 3: Cross multiply
    338x = 507.09 × 167
  4. Step 4: Simplify right side
    338x = 84,684.03
  5. Step 5: Solve for x
    x = 84,684.03/338
  6. Step 6: Final answer
    x = 250.54

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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.