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Finding the Fourth Proportional to 506.54, 759.76 and 141.32

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Solution

The fourth proportional to 506.54, 759.76 and 141.32 is: 211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.54 : 759.76 = 141.32 : x
  2. Step 2: Convert to fraction form
    506.54/759.76 = 141.32/x
  3. Step 3: Cross multiply
    506.54x = 759.76 × 141.32
  4. Step 4: Simplify right side
    506.54x = 107,370.83
  5. Step 5: Solve for x
    x = 107,370.83/506.54
  6. Step 6: Final answer
    x = 211.97

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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.