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Finding the Fourth Proportional to 284.46, 426.63 and 92.04

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Solution

The fourth proportional to 284.46, 426.63 and 92.04 is: 138.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.46 : 426.63 = 92.04 : x
  2. Step 2: Convert to fraction form
    284.46/426.63 = 92.04/x
  3. Step 3: Cross multiply
    284.46x = 426.63 × 92.04
  4. Step 4: Simplify right side
    284.46x = 39,267.03
  5. Step 5: Solve for x
    x = 39,267.03/284.46
  6. Step 6: Final answer
    x = 138.04

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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.