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Finding the Fourth Proportional to 601.97, 902.94 and 255.21

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Solution

The fourth proportional to 601.97, 902.94 and 255.21 is: 382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.97 : 902.94 = 255.21 : x
  2. Step 2: Convert to fraction form
    601.97/902.94 = 255.21/x
  3. Step 3: Cross multiply
    601.97x = 902.94 × 255.21
  4. Step 4: Simplify right side
    601.97x = 230,434.97
  5. Step 5: Solve for x
    x = 230,434.97/601.97
  6. Step 6: Final answer
    x = 382.80

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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.