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Finding the Fourth Proportional to 506.29, 759.42 and 141.07

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Solution

The fourth proportional to 506.29, 759.42 and 141.07 is: 211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.29 : 759.42 = 141.07 : x
  2. Step 2: Convert to fraction form
    506.29/759.42 = 141.07/x
  3. Step 3: Cross multiply
    506.29x = 759.42 × 141.07
  4. Step 4: Simplify right side
    506.29x = 107,128.97
  5. Step 5: Solve for x
    x = 107,128.97/506.29
  6. Step 6: Final answer
    x = 211.60

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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.