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Finding the Fourth Proportional to 519.37, 717.67 and 371.75

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Solution

The fourth proportional to 519.37, 717.67 and 371.75 is: 513.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.37 : 717.67 = 371.75 : x
  2. Step 2: Convert to fraction form
    519.37/717.67 = 371.75/x
  3. Step 3: Cross multiply
    519.37x = 717.67 × 371.75
  4. Step 4: Simplify right side
    519.37x = 266,793.82
  5. Step 5: Solve for x
    x = 266,793.82/519.37
  6. Step 6: Final answer
    x = 513.69

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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.