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Finding the Fourth Proportional to 616.83, 925.18 and 308.89

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Solution

The fourth proportional to 616.83, 925.18 and 308.89 is: 463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.83 : 925.18 = 308.89 : x
  2. Step 2: Convert to fraction form
    616.83/925.18 = 308.89/x
  3. Step 3: Cross multiply
    616.83x = 925.18 × 308.89
  4. Step 4: Simplify right side
    616.83x = 285,778.80
  5. Step 5: Solve for x
    x = 285,778.80/616.83
  6. Step 6: Final answer
    x = 463.30

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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.