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Finding the Fourth Proportional to 616.71, 925.19 and 251.54

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Solution

The fourth proportional to 616.71, 925.19 and 251.54 is: 377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.71 : 925.19 = 251.54 : x
  2. Step 2: Convert to fraction form
    616.71/925.19 = 251.54/x
  3. Step 3: Cross multiply
    616.71x = 925.19 × 251.54
  4. Step 4: Simplify right side
    616.71x = 232,720.82
  5. Step 5: Solve for x
    x = 232,720.82/616.71
  6. Step 6: Final answer
    x = 377.36

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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.