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Finding the Fourth Proportional to 455.22, 682.72 and 181.37

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Solution

The fourth proportional to 455.22, 682.72 and 181.37 is: 272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    455.22 : 682.72 = 181.37 : x
  2. Step 2: Convert to fraction form
    455.22/682.72 = 181.37/x
  3. Step 3: Cross multiply
    455.22x = 682.72 × 181.37
  4. Step 4: Simplify right side
    455.22x = 123,824.93
  5. Step 5: Solve for x
    x = 123,824.93/455.22
  6. Step 6: Final answer
    x = 272.01

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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.