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Finding the Fourth Proportional to 376.05, 518.61 and 271.08

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Solution

The fourth proportional to 376.05, 518.61 and 271.08 is: 373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.05 : 518.61 = 271.08 : x
  2. Step 2: Convert to fraction form
    376.05/518.61 = 271.08/x
  3. Step 3: Cross multiply
    376.05x = 518.61 × 271.08
  4. Step 4: Simplify right side
    376.05x = 140,584.80
  5. Step 5: Solve for x
    x = 140,584.80/376.05
  6. Step 6: Final answer
    x = 373.85

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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.