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Finding the Fourth Proportional to 561.24, 773.99 and 364.42

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Solution

The fourth proportional to 561.24, 773.99 and 364.42 is: 502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.24 : 773.99 = 364.42 : x
  2. Step 2: Convert to fraction form
    561.24/773.99 = 364.42/x
  3. Step 3: Cross multiply
    561.24x = 773.99 × 364.42
  4. Step 4: Simplify right side
    561.24x = 282,057.44
  5. Step 5: Solve for x
    x = 282,057.44/561.24
  6. Step 6: Final answer
    x = 502.56

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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.