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Finding the Fourth Proportional to 655.13, 982.97 and 395.29

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Solution

The fourth proportional to 655.13, 982.97 and 395.29 is: 593.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.13 : 982.97 = 395.29 : x
  2. Step 2: Convert to fraction form
    655.13/982.97 = 395.29/x
  3. Step 3: Cross multiply
    655.13x = 982.97 × 395.29
  4. Step 4: Simplify right side
    655.13x = 388,558.21
  5. Step 5: Solve for x
    x = 388,558.21/655.13
  6. Step 6: Final answer
    x = 593.10

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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.