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Finding the Fourth Proportional to 381.69, 568.85 and 366.44

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Solution

The fourth proportional to 381.69, 568.85 and 366.44 is: 546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.69 : 568.85 = 366.44 : x
  2. Step 2: Convert to fraction form
    381.69/568.85 = 366.44/x
  3. Step 3: Cross multiply
    381.69x = 568.85 × 366.44
  4. Step 4: Simplify right side
    381.69x = 208,444.72
  5. Step 5: Solve for x
    x = 208,444.72/381.69
  6. Step 6: Final answer
    x = 546.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.