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Finding the Fourth Proportional to 312.28, 467.94 and 175.37

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Solution

The fourth proportional to 312.28, 467.94 and 175.37 is: 262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    312.28 : 467.94 = 175.37 : x
  2. Step 2: Convert to fraction form
    312.28/467.94 = 175.37/x
  3. Step 3: Cross multiply
    312.28x = 467.94 × 175.37
  4. Step 4: Simplify right side
    312.28x = 82,060.96
  5. Step 5: Solve for x
    x = 82,060.96/312.28
  6. Step 6: Final answer
    x = 262.78

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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.