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Finding the Fourth Proportional to 237.65, 327.65 and 198.36

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Solution

The fourth proportional to 237.65, 327.65 and 198.36 is: 273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.65 : 327.65 = 198.36 : x
  2. Step 2: Convert to fraction form
    237.65/327.65 = 198.36/x
  3. Step 3: Cross multiply
    237.65x = 327.65 × 198.36
  4. Step 4: Simplify right side
    237.65x = 64,991.66
  5. Step 5: Solve for x
    x = 64,991.66/237.65
  6. Step 6: Final answer
    x = 273.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.