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Finding the Fourth Proportional to 550.11, 825.30 and 165.36

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Solution

The fourth proportional to 550.11, 825.30 and 165.36 is: 248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.11 : 825.30 = 165.36 : x
  2. Step 2: Convert to fraction form
    550.11/825.30 = 165.36/x
  3. Step 3: Cross multiply
    550.11x = 825.30 × 165.36
  4. Step 4: Simplify right side
    550.11x = 136,471.61
  5. Step 5: Solve for x
    x = 136,471.61/550.11
  6. Step 6: Final answer
    x = 248.08

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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.