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Finding the Fourth Proportional to 237.71, 354.06 and 222.71

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Solution

The fourth proportional to 237.71, 354.06 and 222.71 is: 331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.71 : 354.06 = 222.71 : x
  2. Step 2: Convert to fraction form
    237.71/354.06 = 222.71/x
  3. Step 3: Cross multiply
    237.71x = 354.06 × 222.71
  4. Step 4: Simplify right side
    237.71x = 78,852.70
  5. Step 5: Solve for x
    x = 78,852.70/237.71
  6. Step 6: Final answer
    x = 331.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.