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Finding the Fourth Proportional to 222.88, 334.06 and 126.76

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Solution

The fourth proportional to 222.88, 334.06 and 126.76 is: 189.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.88 : 334.06 = 126.76 : x
  2. Step 2: Convert to fraction form
    222.88/334.06 = 126.76/x
  3. Step 3: Cross multiply
    222.88x = 334.06 × 126.76
  4. Step 4: Simplify right side
    222.88x = 42,345.45
  5. Step 5: Solve for x
    x = 42,345.45/222.88
  6. Step 6: Final answer
    x = 189.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.