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Finding the Fourth Proportional to 539.58, 807.77 and 333.48

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Solution

The fourth proportional to 539.58, 807.77 and 333.48 is: 499.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    539.58 : 807.77 = 333.48 : x
  2. Step 2: Convert to fraction form
    539.58/807.77 = 333.48/x
  3. Step 3: Cross multiply
    539.58x = 807.77 × 333.48
  4. Step 4: Simplify right side
    539.58x = 269,375.14
  5. Step 5: Solve for x
    x = 269,375.14/539.58
  6. Step 6: Final answer
    x = 499.23

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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.