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Finding the Fourth Proportional to 226.55, 339.30 and 165.53

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Solution

The fourth proportional to 226.55, 339.30 and 165.53 is: 247.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.55 : 339.30 = 165.53 : x
  2. Step 2: Convert to fraction form
    226.55/339.30 = 165.53/x
  3. Step 3: Cross multiply
    226.55x = 339.30 × 165.53
  4. Step 4: Simplify right side
    226.55x = 56,164.33
  5. Step 5: Solve for x
    x = 56,164.33/226.55
  6. Step 6: Final answer
    x = 247.91

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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.