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Finding the Fourth Proportional to 273.22, 409.15 and 181.64

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Solution

The fourth proportional to 273.22, 409.15 and 181.64 is: 272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.22 : 409.15 = 181.64 : x
  2. Step 2: Convert to fraction form
    273.22/409.15 = 181.64/x
  3. Step 3: Cross multiply
    273.22x = 409.15 × 181.64
  4. Step 4: Simplify right side
    273.22x = 74,319.26
  5. Step 5: Solve for x
    x = 74,319.26/273.22
  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.