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Finding the Fourth Proportional to 284.02, 425.28 and 192.52

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Solution

The fourth proportional to 284.02, 425.28 and 192.52 is: 288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.02 : 425.28 = 192.52 : x
  2. Step 2: Convert to fraction form
    284.02/425.28 = 192.52/x
  3. Step 3: Cross multiply
    284.02x = 425.28 × 192.52
  4. Step 4: Simplify right side
    284.02x = 81,874.91
  5. Step 5: Solve for x
    x = 81,874.91/284.02
  6. Step 6: Final answer
    x = 288.27

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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.