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Finding the Fourth Proportional to 506.28, 759.21 and 181.47

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Solution

The fourth proportional to 506.28, 759.21 and 181.47 is: 272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.28 : 759.21 = 181.47 : x
  2. Step 2: Convert to fraction form
    506.28/759.21 = 181.47/x
  3. Step 3: Cross multiply
    506.28x = 759.21 × 181.47
  4. Step 4: Simplify right side
    506.28x = 137,773.84
  5. Step 5: Solve for x
    x = 137,773.84/506.28
  6. Step 6: Final answer
    x = 272.13

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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.