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Finding the Fourth Proportional to 223.19, 334.64 and 107.57

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Solution

The fourth proportional to 223.19, 334.64 and 107.57 is: 161.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.19 : 334.64 = 107.57 : x
  2. Step 2: Convert to fraction form
    223.19/334.64 = 107.57/x
  3. Step 3: Cross multiply
    223.19x = 334.64 × 107.57
  4. Step 4: Simplify right side
    223.19x = 35,995.01
  5. Step 5: Solve for x
    x = 35,995.01/223.19
  6. Step 6: Final answer
    x = 161.28

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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.