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Finding the Fourth Proportional to 519.87, 718.37 and 372.26

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Solution

The fourth proportional to 519.87, 718.37 and 372.26 is: 514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.87 : 718.37 = 372.26 : x
  2. Step 2: Convert to fraction form
    519.87/718.37 = 372.26/x
  3. Step 3: Cross multiply
    519.87x = 718.37 × 372.26
  4. Step 4: Simplify right side
    519.87x = 267,414.96
  5. Step 5: Solve for x
    x = 267,414.96/519.87
  6. Step 6: Final answer
    x = 514.39

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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.