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Finding the Fourth Proportional to 564.33, 845.92 and 381.74

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Solution

The fourth proportional to 564.33, 845.92 and 381.74 is: 572.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.33 : 845.92 = 381.74 : x
  2. Step 2: Convert to fraction form
    564.33/845.92 = 381.74/x
  3. Step 3: Cross multiply
    564.33x = 845.92 × 381.74
  4. Step 4: Simplify right side
    564.33x = 322,919.59
  5. Step 5: Solve for x
    x = 322,919.59/564.33
  6. Step 6: Final answer
    x = 572.22

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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.