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Finding the Fourth Proportional to 344.11, 515.62 and 222.28

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Solution

The fourth proportional to 344.11, 515.62 and 222.28 is: 333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.11 : 515.62 = 222.28 : x
  2. Step 2: Convert to fraction form
    344.11/515.62 = 222.28/x
  3. Step 3: Cross multiply
    344.11x = 515.62 × 222.28
  4. Step 4: Simplify right side
    344.11x = 114,612.01
  5. Step 5: Solve for x
    x = 114,612.01/344.11
  6. Step 6: Final answer
    x = 333.07

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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.