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Finding the Fourth Proportional to 237.66, 356.64 and 218.52

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Solution

The fourth proportional to 237.66, 356.64 and 218.52 is: 327.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.66 : 356.64 = 218.52 : x
  2. Step 2: Convert to fraction form
    237.66/356.64 = 218.52/x
  3. Step 3: Cross multiply
    237.66x = 356.64 × 218.52
  4. Step 4: Simplify right side
    237.66x = 77,932.97
  5. Step 5: Solve for x
    x = 77,932.97/237.66
  6. Step 6: Final answer
    x = 327.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.