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Finding the Fourth Proportional to 519.98, 717.46 and 323.37

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Solution

The fourth proportional to 519.98, 717.46 and 323.37 is: 446.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.98 : 717.46 = 323.37 : x
  2. Step 2: Convert to fraction form
    519.98/717.46 = 323.37/x
  3. Step 3: Cross multiply
    519.98x = 717.46 × 323.37
  4. Step 4: Simplify right side
    519.98x = 232,004.23
  5. Step 5: Solve for x
    x = 232,004.23/519.98
  6. Step 6: Final answer
    x = 446.18

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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.