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Finding the Fourth Proportional to 237.10, 327.35 and 220.76

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Solution

The fourth proportional to 237.10, 327.35 and 220.76 is: 304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.10 : 327.35 = 220.76 : x
  2. Step 2: Convert to fraction form
    237.10/327.35 = 220.76/x
  3. Step 3: Cross multiply
    237.10x = 327.35 × 220.76
  4. Step 4: Simplify right side
    237.10x = 72,265.79
  5. Step 5: Solve for x
    x = 72,265.79/237.10
  6. Step 6: Final answer
    x = 304.79

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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.