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Finding the Fourth Proportional to 616.71, 850.97 and 351.17

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Solution

The fourth proportional to 616.71, 850.97 and 351.17 is: 484.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.71 : 850.97 = 351.17 : x
  2. Step 2: Convert to fraction form
    616.71/850.97 = 351.17/x
  3. Step 3: Cross multiply
    616.71x = 850.97 × 351.17
  4. Step 4: Simplify right side
    616.71x = 298,829.12
  5. Step 5: Solve for x
    x = 298,829.12/616.71
  6. Step 6: Final answer
    x = 484.55

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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.