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Finding the Fourth Proportional to 616.94, 926.05 and 251.97

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Solution

The fourth proportional to 616.94, 926.05 and 251.97 is: 378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.94 : 926.05 = 251.97 : x
  2. Step 2: Convert to fraction form
    616.94/926.05 = 251.97/x
  3. Step 3: Cross multiply
    616.94x = 926.05 × 251.97
  4. Step 4: Simplify right side
    616.94x = 233,336.82
  5. Step 5: Solve for x
    x = 233,336.82/616.94
  6. Step 6: Final answer
    x = 378.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.