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Finding the Fourth Proportional to 284.97, 427.23 and 169.41

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Solution

The fourth proportional to 284.97, 427.23 and 169.41 is: 253.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.97 : 427.23 = 169.41 : x
  2. Step 2: Convert to fraction form
    284.97/427.23 = 169.41/x
  3. Step 3: Cross multiply
    284.97x = 427.23 × 169.41
  4. Step 4: Simplify right side
    284.97x = 72,377.03
  5. Step 5: Solve for x
    x = 72,377.03/284.97
  6. Step 6: Final answer
    x = 253.98

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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.