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Finding the Fourth Proportional to 613.67, 920.28 and 202.73

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Solution

The fourth proportional to 613.67, 920.28 and 202.73 is: 304.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    613.67 : 920.28 = 202.73 : x
  2. Step 2: Convert to fraction form
    613.67/920.28 = 202.73/x
  3. Step 3: Cross multiply
    613.67x = 920.28 × 202.73
  4. Step 4: Simplify right side
    613.67x = 186,568.36
  5. Step 5: Solve for x
    x = 186,568.36/613.67
  6. Step 6: Final answer
    x = 304.02

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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.