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Finding the Fourth Proportional to 654.51, 982.17 and 269.76

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Solution

The fourth proportional to 654.51, 982.17 and 269.76 is: 404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.51 : 982.17 = 269.76 : x
  2. Step 2: Convert to fraction form
    654.51/982.17 = 269.76/x
  3. Step 3: Cross multiply
    654.51x = 982.17 × 269.76
  4. Step 4: Simplify right side
    654.51x = 264,950.18
  5. Step 5: Solve for x
    x = 264,950.18/654.51
  6. Step 6: Final answer
    x = 404.81

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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.