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Finding the Fourth Proportional to 230.11, 344.43 and 164.90

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Solution

The fourth proportional to 230.11, 344.43 and 164.90 is: 246.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.11 : 344.43 = 164.90 : x
  2. Step 2: Convert to fraction form
    230.11/344.43 = 164.90/x
  3. Step 3: Cross multiply
    230.11x = 344.43 × 164.90
  4. Step 4: Simplify right side
    230.11x = 56,796.51
  5. Step 5: Solve for x
    x = 56,796.51/230.11
  6. Step 6: Final answer
    x = 246.82

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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.