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Finding the Fourth Proportional to 222.46, 334.88 and 171.39

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Solution

The fourth proportional to 222.46, 334.88 and 171.39 is: 258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.46 : 334.88 = 171.39 : x
  2. Step 2: Convert to fraction form
    222.46/334.88 = 171.39/x
  3. Step 3: Cross multiply
    222.46x = 334.88 × 171.39
  4. Step 4: Simplify right side
    222.46x = 57,395.08
  5. Step 5: Solve for x
    x = 57,395.08/222.46
  6. Step 6: Final answer
    x = 258.00

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.