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Finding the Fourth Proportional to 527.48, 791.20 and 181.05

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Solution

The fourth proportional to 527.48, 791.20 and 181.05 is: 271.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.48 : 791.20 = 181.05 : x
  2. Step 2: Convert to fraction form
    527.48/791.20 = 181.05/x
  3. Step 3: Cross multiply
    527.48x = 791.20 × 181.05
  4. Step 4: Simplify right side
    527.48x = 143,244.02
  5. Step 5: Solve for x
    x = 143,244.02/527.48
  6. Step 6: Final answer
    x = 271.56

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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.