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Finding the Fourth Proportional to 584.62, 806.76 and 351.70

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Solution

The fourth proportional to 584.62, 806.76 and 351.70 is: 485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.62 : 806.76 = 351.70 : x
  2. Step 2: Convert to fraction form
    584.62/806.76 = 351.70/x
  3. Step 3: Cross multiply
    584.62x = 806.76 × 351.70
  4. Step 4: Simplify right side
    584.62x = 283,735.73
  5. Step 5: Solve for x
    x = 283,735.73/584.62
  6. Step 6: Final answer
    x = 485.33

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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.