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Finding the Fourth Proportional to 667.18, 996.39 and 568.63

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Solution

The fourth proportional to 667.18, 996.39 and 568.63 is: 849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.18 : 996.39 = 568.63 : x
  2. Step 2: Convert to fraction form
    667.18/996.39 = 568.63/x
  3. Step 3: Cross multiply
    667.18x = 996.39 × 568.63
  4. Step 4: Simplify right side
    667.18x = 566,577.25
  5. Step 5: Solve for x
    x = 566,577.25/667.18
  6. Step 6: Final answer
    x = 849.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.