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Finding the Fourth Proportional to 237.04, 327.04 and 138.79

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Solution

The fourth proportional to 237.04, 327.04 and 138.79 is: 191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.04 : 327.04 = 138.79 : x
  2. Step 2: Convert to fraction form
    237.04/327.04 = 138.79/x
  3. Step 3: Cross multiply
    237.04x = 327.04 × 138.79
  4. Step 4: Simplify right side
    237.04x = 45,388.72
  5. Step 5: Solve for x
    x = 45,388.72/237.04
  6. Step 6: Final answer
    x = 191.48

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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.