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Finding the Fourth Proportional to 237.03, 327.13 and 138.77

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Solution

The fourth proportional to 237.03, 327.13 and 138.77 is: 191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.03 : 327.13 = 138.77 : x
  2. Step 2: Convert to fraction form
    237.03/327.13 = 138.77/x
  3. Step 3: Cross multiply
    237.03x = 327.13 × 138.77
  4. Step 4: Simplify right side
    237.03x = 45,394.19
  5. Step 5: Solve for x
    x = 45,394.19/237.03
  6. Step 6: Final answer
    x = 191.51

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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.