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Finding the Fourth Proportional to 226.80, 340.62 and 192.60

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Solution

The fourth proportional to 226.80, 340.62 and 192.60 is: 289.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.80 : 340.62 = 192.60 : x
  2. Step 2: Convert to fraction form
    226.80/340.62 = 192.60/x
  3. Step 3: Cross multiply
    226.80x = 340.62 × 192.60
  4. Step 4: Simplify right side
    226.80x = 65,603.41
  5. Step 5: Solve for x
    x = 65,603.41/226.80
  6. Step 6: Final answer
    x = 289.26

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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.