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Finding the Fourth Proportional to 192.43, 264.26 and 164.80

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Solution

The fourth proportional to 192.43, 264.26 and 164.80 is: 226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192.43 : 264.26 = 164.80 : x
  2. Step 2: Convert to fraction form
    192.43/264.26 = 164.80/x
  3. Step 3: Cross multiply
    192.43x = 264.26 × 164.80
  4. Step 4: Simplify right side
    192.43x = 43,550.05
  5. Step 5: Solve for x
    x = 43,550.05/192.43
  6. Step 6: Final answer
    x = 226.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.