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Finding the Fourth Proportional to 283.20, 425.16 and 222.54

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Solution

The fourth proportional to 283.20, 425.16 and 222.54 is: 334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.20 : 425.16 = 222.54 : x
  2. Step 2: Convert to fraction form
    283.20/425.16 = 222.54/x
  3. Step 3: Cross multiply
    283.20x = 425.16 × 222.54
  4. Step 4: Simplify right side
    283.20x = 94,615.11
  5. Step 5: Solve for x
    x = 94,615.11/283.20
  6. Step 6: Final answer
    x = 334.09

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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.