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Finding the Fourth Proportional to 22.27, 33.40 and 6.23

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Solution

The fourth proportional to 22.27, 33.40 and 6.23 is: 9.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22.27 : 33.40 = 6.23 : x
  2. Step 2: Convert to fraction form
    22.27/33.40 = 6.23/x
  3. Step 3: Cross multiply
    22.27x = 33.40 × 6.23
  4. Step 4: Simplify right side
    22.27x = 208.15
  5. Step 5: Solve for x
    x = 208.15/22.27
  6. Step 6: Final answer
    x = 9.35

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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.