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Finding the Fourth Proportional to 604.29, 833.88 and 355.66

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Solution

The fourth proportional to 604.29, 833.88 and 355.66 is: 490.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.29 : 833.88 = 355.66 : x
  2. Step 2: Convert to fraction form
    604.29/833.88 = 355.66/x
  3. Step 3: Cross multiply
    604.29x = 833.88 × 355.66
  4. Step 4: Simplify right side
    604.29x = 296,575.68
  5. Step 5: Solve for x
    x = 296,575.68/604.29
  6. Step 6: Final answer
    x = 490.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.