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Finding the Fourth Proportional to 655.73, 982.89 and 308.77

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Solution

The fourth proportional to 655.73, 982.89 and 308.77 is: 462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.73 : 982.89 = 308.77 : x
  2. Step 2: Convert to fraction form
    655.73/982.89 = 308.77/x
  3. Step 3: Cross multiply
    655.73x = 982.89 × 308.77
  4. Step 4: Simplify right side
    655.73x = 303,486.95
  5. Step 5: Solve for x
    x = 303,486.95/655.73
  6. Step 6: Final answer
    x = 462.82

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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.