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Finding the Fourth Proportional to 561.01, 773.85 and 351.22

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Solution

The fourth proportional to 561.01, 773.85 and 351.22 is: 484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.01 : 773.85 = 351.22 : x
  2. Step 2: Convert to fraction form
    561.01/773.85 = 351.22/x
  3. Step 3: Cross multiply
    561.01x = 773.85 × 351.22
  4. Step 4: Simplify right side
    561.01x = 271,791.60
  5. Step 5: Solve for x
    x = 271,791.60/561.01
  6. Step 6: Final answer
    x = 484.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.