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Finding the Fourth Proportional to 376.02, 518.06 and 276.26

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Solution

The fourth proportional to 376.02, 518.06 and 276.26 is: 380.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.02 : 518.06 = 276.26 : x
  2. Step 2: Convert to fraction form
    376.02/518.06 = 276.26/x
  3. Step 3: Cross multiply
    376.02x = 518.06 × 276.26
  4. Step 4: Simplify right side
    376.02x = 143,115.28
  5. Step 5: Solve for x
    x = 143,115.28/376.02
  6. Step 6: Final answer
    x = 380.61

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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.