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Finding the Fourth Proportional to 550.42, 825.62 and 165.67

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Solution

The fourth proportional to 550.42, 825.62 and 165.67 is: 248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.42 : 825.62 = 165.67 : x
  2. Step 2: Convert to fraction form
    550.42/825.62 = 165.67/x
  3. Step 3: Cross multiply
    550.42x = 825.62 × 165.67
  4. Step 4: Simplify right side
    550.42x = 136,777.57
  5. Step 5: Solve for x
    x = 136,777.57/550.42
  6. Step 6: Final answer
    x = 248.50

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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.