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Finding the Fourth Proportional to 544.21, 816.77 and 270.39

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Solution

The fourth proportional to 544.21, 816.77 and 270.39 is: 405.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    544.21 : 816.77 = 270.39 : x
  2. Step 2: Convert to fraction form
    544.21/816.77 = 270.39/x
  3. Step 3: Cross multiply
    544.21x = 816.77 × 270.39
  4. Step 4: Simplify right side
    544.21x = 220,846.44
  5. Step 5: Solve for x
    x = 220,846.44/544.21
  6. Step 6: Final answer
    x = 405.81

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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.