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Finding the Fourth Proportional to 604.74, 834.47 and 355.97

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Solution

The fourth proportional to 604.74, 834.47 and 355.97 is: 491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.74 : 834.47 = 355.97 : x
  2. Step 2: Convert to fraction form
    604.74/834.47 = 355.97/x
  3. Step 3: Cross multiply
    604.74x = 834.47 × 355.97
  4. Step 4: Simplify right side
    604.74x = 297,046.29
  5. Step 5: Solve for x
    x = 297,046.29/604.74
  6. Step 6: Final answer
    x = 491.20

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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.