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Finding the Fourth Proportional to 584.71, 806.97 and 351.88

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Solution

The fourth proportional to 584.71, 806.97 and 351.88 is: 485.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.71 : 806.97 = 351.88 : x
  2. Step 2: Convert to fraction form
    584.71/806.97 = 351.88/x
  3. Step 3: Cross multiply
    584.71x = 806.97 × 351.88
  4. Step 4: Simplify right side
    584.71x = 283,956.60
  5. Step 5: Solve for x
    x = 283,956.60/584.71
  6. Step 6: Final answer
    x = 485.64

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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.