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Finding the Fourth Proportional to 550.22, 823.42 and 341.90

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Solution

The fourth proportional to 550.22, 823.42 and 341.90 is: 511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.22 : 823.42 = 341.90 : x
  2. Step 2: Convert to fraction form
    550.22/823.42 = 341.90/x
  3. Step 3: Cross multiply
    550.22x = 823.42 × 341.90
  4. Step 4: Simplify right side
    550.22x = 281,527.30
  5. Step 5: Solve for x
    x = 281,527.30/550.22
  6. Step 6: Final answer
    x = 511.66

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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.