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Finding the Fourth Proportional to 376.88, 519.66 and 229.46

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Solution

The fourth proportional to 376.88, 519.66 and 229.46 is: 316.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    376.88 : 519.66 = 229.46 : x
  2. Step 2: Convert to fraction form
    376.88/519.66 = 229.46/x
  3. Step 3: Cross multiply
    376.88x = 519.66 × 229.46
  4. Step 4: Simplify right side
    376.88x = 119,241.18
  5. Step 5: Solve for x
    x = 119,241.18/376.88
  6. Step 6: Final answer
    x = 316.39

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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.