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Finding the Fourth Proportional to 654.73, 982.67 and 308.25

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Solution

The fourth proportional to 654.73, 982.67 and 308.25 is: 462.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.73 : 982.67 = 308.25 : x
  2. Step 2: Convert to fraction form
    654.73/982.67 = 308.25/x
  3. Step 3: Cross multiply
    654.73x = 982.67 × 308.25
  4. Step 4: Simplify right side
    654.73x = 302,908.03
  5. Step 5: Solve for x
    x = 302,908.03/654.73
  6. Step 6: Final answer
    x = 462.65

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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.