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Finding the Fourth Proportional to 376.09, 518.79 and 236.17

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Solution

The fourth proportional to 376.09, 518.79 and 236.17 is: 325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.09 : 518.79 = 236.17 : x
  2. Step 2: Convert to fraction form
    376.09/518.79 = 236.17/x
  3. Step 3: Cross multiply
    376.09x = 518.79 × 236.17
  4. Step 4: Simplify right side
    376.09x = 122,522.63
  5. Step 5: Solve for x
    x = 122,522.63/376.09
  6. Step 6: Final answer
    x = 325.78

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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.