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Finding the Fourth Proportional to 237.74, 326.50 and 220.82

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Solution

The fourth proportional to 237.74, 326.50 and 220.82 is: 303.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.74 : 326.50 = 220.82 : x
  2. Step 2: Convert to fraction form
    237.74/326.50 = 220.82/x
  3. Step 3: Cross multiply
    237.74x = 326.50 × 220.82
  4. Step 4: Simplify right side
    237.74x = 72,097.73
  5. Step 5: Solve for x
    x = 72,097.73/237.74
  6. Step 6: Final answer
    x = 303.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.