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Finding the Fourth Proportional to 378.54, 568.62 and 376.11

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Solution

The fourth proportional to 378.54, 568.62 and 376.11 is: 564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.54 : 568.62 = 376.11 : x
  2. Step 2: Convert to fraction form
    378.54/568.62 = 376.11/x
  3. Step 3: Cross multiply
    378.54x = 568.62 × 376.11
  4. Step 4: Simplify right side
    378.54x = 213,863.67
  5. Step 5: Solve for x
    x = 213,863.67/378.54
  6. Step 6: Final answer
    x = 564.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.