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Finding the Fourth Proportional to 506.34, 759.40 and 141.17

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Solution

The fourth proportional to 506.34, 759.40 and 141.17 is: 211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    506.34 : 759.40 = 141.17 : x
  2. Step 2: Convert to fraction form
    506.34/759.40 = 141.17/x
  3. Step 3: Cross multiply
    506.34x = 759.40 × 141.17
  4. Step 4: Simplify right side
    506.34x = 107,200.35
  5. Step 5: Solve for x
    x = 107,200.35/506.34
  6. Step 6: Final answer
    x = 211.72

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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.