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Finding the Fourth Proportional to 230.02, 345 and 223.92

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Solution

The fourth proportional to 230.02, 345 and 223.92 is: 335.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.02 : 345 = 223.92 : x
  2. Step 2: Convert to fraction form
    230.02/345 = 223.92/x
  3. Step 3: Cross multiply
    230.02x = 345 × 223.92
  4. Step 4: Simplify right side
    230.02x = 77,252.40
  5. Step 5: Solve for x
    x = 77,252.40/230.02
  6. Step 6: Final answer
    x = 335.85

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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.