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Finding the Fourth Proportional to 379.02, 523.05 and 254.83

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Solution

The fourth proportional to 379.02, 523.05 and 254.83 is: 351.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.02 : 523.05 = 254.83 : x
  2. Step 2: Convert to fraction form
    379.02/523.05 = 254.83/x
  3. Step 3: Cross multiply
    379.02x = 523.05 × 254.83
  4. Step 4: Simplify right side
    379.02x = 133,287.56
  5. Step 5: Solve for x
    x = 133,287.56/379.02
  6. Step 6: Final answer
    x = 351.67

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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.