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Finding the Fourth Proportional to 584.60, 806.28 and 351.68

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Solution

The fourth proportional to 584.60, 806.28 and 351.68 is: 485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.60 : 806.28 = 351.68 : x
  2. Step 2: Convert to fraction form
    584.60/806.28 = 351.68/x
  3. Step 3: Cross multiply
    584.60x = 806.28 × 351.68
  4. Step 4: Simplify right side
    584.60x = 283,552.55
  5. Step 5: Solve for x
    x = 283,552.55/584.60
  6. Step 6: Final answer
    x = 485.04

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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.