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Finding the Fourth Proportional to 402.82, 604.23 and 114.26

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Solution

The fourth proportional to 402.82, 604.23 and 114.26 is: 171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.82 : 604.23 = 114.26 : x
  2. Step 2: Convert to fraction form
    402.82/604.23 = 114.26/x
  3. Step 3: Cross multiply
    402.82x = 604.23 × 114.26
  4. Step 4: Simplify right side
    402.82x = 69,035.87
  5. Step 5: Solve for x
    x = 69,035.87/402.82
  6. Step 6: Final answer
    x = 171.38

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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.