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Finding the Fourth Proportional to 616.61, 850.82 and 350.95

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Solution

The fourth proportional to 616.61, 850.82 and 350.95 is: 484.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.61 : 850.82 = 350.95 : x
  2. Step 2: Convert to fraction form
    616.61/850.82 = 350.95/x
  3. Step 3: Cross multiply
    616.61x = 850.82 × 350.95
  4. Step 4: Simplify right side
    616.61x = 298,594.97
  5. Step 5: Solve for x
    x = 298,594.97/616.61
  6. Step 6: Final answer
    x = 484.25

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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.