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Finding the Fourth Proportional to 376.13, 519.01 and 218.80

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Solution

The fourth proportional to 376.13, 519.01 and 218.80 is: 301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.13 : 519.01 = 218.80 : x
  2. Step 2: Convert to fraction form
    376.13/519.01 = 218.80/x
  3. Step 3: Cross multiply
    376.13x = 519.01 × 218.80
  4. Step 4: Simplify right side
    376.13x = 113,559.49
  5. Step 5: Solve for x
    x = 113,559.49/376.13
  6. Step 6: Final answer
    x = 301.92

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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.