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Finding the Fourth Proportional to 218.36, 327.47 and 183.66

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Solution

The fourth proportional to 218.36, 327.47 and 183.66 is: 275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.36 : 327.47 = 183.66 : x
  2. Step 2: Convert to fraction form
    218.36/327.47 = 183.66/x
  3. Step 3: Cross multiply
    218.36x = 327.47 × 183.66
  4. Step 4: Simplify right side
    218.36x = 60,142.22
  5. Step 5: Solve for x
    x = 60,142.22/218.36
  6. Step 6: Final answer
    x = 275.43

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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.