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Finding the Fourth Proportional to 518.73, 777.97 and 333.07

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Solution

The fourth proportional to 518.73, 777.97 and 333.07 is: 499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.73 : 777.97 = 333.07 : x
  2. Step 2: Convert to fraction form
    518.73/777.97 = 333.07/x
  3. Step 3: Cross multiply
    518.73x = 777.97 × 333.07
  4. Step 4: Simplify right side
    518.73x = 259,118.47
  5. Step 5: Solve for x
    x = 259,118.47/518.73
  6. Step 6: Final answer
    x = 499.52

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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.