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Finding the Fourth Proportional to 218.48, 300.06 and 181.53

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Solution

The fourth proportional to 218.48, 300.06 and 181.53 is: 249.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.48 : 300.06 = 181.53 : x
  2. Step 2: Convert to fraction form
    218.48/300.06 = 181.53/x
  3. Step 3: Cross multiply
    218.48x = 300.06 × 181.53
  4. Step 4: Simplify right side
    218.48x = 54,469.89
  5. Step 5: Solve for x
    x = 54,469.89/218.48
  6. Step 6: Final answer
    x = 249.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.