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Finding the Fourth Proportional to 218.22, 301.04 and 185.82

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Solution

The fourth proportional to 218.22, 301.04 and 185.82 is: 256.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.22 : 301.04 = 185.82 : x
  2. Step 2: Convert to fraction form
    218.22/301.04 = 185.82/x
  3. Step 3: Cross multiply
    218.22x = 301.04 × 185.82
  4. Step 4: Simplify right side
    218.22x = 55,939.25
  5. Step 5: Solve for x
    x = 55,939.25/218.22
  6. Step 6: Final answer
    x = 256.34

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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.