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Finding the Fourth Proportional to 237.51, 327.64 and 144.20

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Solution

The fourth proportional to 237.51, 327.64 and 144.20 is: 198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.51 : 327.64 = 144.20 : x
  2. Step 2: Convert to fraction form
    237.51/327.64 = 144.20/x
  3. Step 3: Cross multiply
    237.51x = 327.64 × 144.20
  4. Step 4: Simplify right side
    237.51x = 47,245.69
  5. Step 5: Solve for x
    x = 47,245.69/237.51
  6. Step 6: Final answer
    x = 198.92

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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.