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Finding the Fourth Proportional to 237.26, 327.42 and 139.08

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Solution

The fourth proportional to 237.26, 327.42 and 139.08 is: 191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.26 : 327.42 = 139.08 : x
  2. Step 2: Convert to fraction form
    237.26/327.42 = 139.08/x
  3. Step 3: Cross multiply
    237.26x = 327.42 × 139.08
  4. Step 4: Simplify right side
    237.26x = 45,537.57
  5. Step 5: Solve for x
    x = 45,537.57/237.26
  6. Step 6: Final answer
    x = 191.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.