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Finding the Fourth Proportional to 402.27, 606.17 and 335.31

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Solution

The fourth proportional to 402.27, 606.17 and 335.31 is: 505.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.27 : 606.17 = 335.31 : x
  2. Step 2: Convert to fraction form
    402.27/606.17 = 335.31/x
  3. Step 3: Cross multiply
    402.27x = 606.17 × 335.31
  4. Step 4: Simplify right side
    402.27x = 203,253.19
  5. Step 5: Solve for x
    x = 203,253.19/402.27
  6. Step 6: Final answer
    x = 505.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.