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Finding the Fourth Proportional to 550.77, 825.99 and 396.23

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Solution

The fourth proportional to 550.77, 825.99 and 396.23 is: 594.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.77 : 825.99 = 396.23 : x
  2. Step 2: Convert to fraction form
    550.77/825.99 = 396.23/x
  3. Step 3: Cross multiply
    550.77x = 825.99 × 396.23
  4. Step 4: Simplify right side
    550.77x = 327,276.40
  5. Step 5: Solve for x
    x = 327,276.40/550.77
  6. Step 6: Final answer
    x = 594.22

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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.