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Finding the Fourth Proportional to 616.70, 925.11 and 251.25

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Solution

The fourth proportional to 616.70, 925.11 and 251.25 is: 376.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.70 : 925.11 = 251.25 : x
  2. Step 2: Convert to fraction form
    616.70/925.11 = 251.25/x
  3. Step 3: Cross multiply
    616.70x = 925.11 × 251.25
  4. Step 4: Simplify right side
    616.70x = 232,433.89
  5. Step 5: Solve for x
    x = 232,433.89/616.70
  6. Step 6: Final answer
    x = 376.90

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Double scale
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1.5x scale

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.