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Finding the Fourth Proportional to 237.45, 327.59 and 139.13

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Solution

The fourth proportional to 237.45, 327.59 and 139.13 is: 191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.45 : 327.59 = 139.13 : x
  2. Step 2: Convert to fraction form
    237.45/327.59 = 139.13/x
  3. Step 3: Cross multiply
    237.45x = 327.59 × 139.13
  4. Step 4: Simplify right side
    237.45x = 45,577.60
  5. Step 5: Solve for x
    x = 45,577.60/237.45
  6. Step 6: Final answer
    x = 191.95

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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.