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Finding the Fourth Proportional to 379.20, 519 and 370.11

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Solution

The fourth proportional to 379.20, 519 and 370.11 is: 506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.20 : 519 = 370.11 : x
  2. Step 2: Convert to fraction form
    379.20/519 = 370.11/x
  3. Step 3: Cross multiply
    379.20x = 519 × 370.11
  4. Step 4: Simplify right side
    379.20x = 192,087.09
  5. Step 5: Solve for x
    x = 192,087.09/379.20
  6. Step 6: Final answer
    x = 506.56

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.