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Finding the Fourth Proportional to 379.73, 570.92 and 331.94

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Solution

The fourth proportional to 379.73, 570.92 and 331.94 is: 499.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.73 : 570.92 = 331.94 : x
  2. Step 2: Convert to fraction form
    379.73/570.92 = 331.94/x
  3. Step 3: Cross multiply
    379.73x = 570.92 × 331.94
  4. Step 4: Simplify right side
    379.73x = 189,510.95
  5. Step 5: Solve for x
    x = 189,510.95/379.73
  6. Step 6: Final answer
    x = 499.06

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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.