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Finding the Fourth Proportional to 568.18, 851.41 and 384.94

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Solution

The fourth proportional to 568.18, 851.41 and 384.94 is: 576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.18 : 851.41 = 384.94 : x
  2. Step 2: Convert to fraction form
    568.18/851.41 = 384.94/x
  3. Step 3: Cross multiply
    568.18x = 851.41 × 384.94
  4. Step 4: Simplify right side
    568.18x = 327,740.12
  5. Step 5: Solve for x
    x = 327,740.12/568.18
  6. Step 6: Final answer
    x = 576.83

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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.