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Finding the Fourth Proportional to 181, 270.90 and 158.24

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Solution

The fourth proportional to 181, 270.90 and 158.24 is: 236.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181 : 270.90 = 158.24 : x
  2. Step 2: Convert to fraction form
    181/270.90 = 158.24/x
  3. Step 3: Cross multiply
    181x = 270.90 × 158.24
  4. Step 4: Simplify right side
    181x = 42,867.22
  5. Step 5: Solve for x
    x = 42,867.22/181
  6. Step 6: Final answer
    x = 236.84

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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.