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Finding the Fourth Proportional to 105.50, 158.08 and 44.49

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Solution

The fourth proportional to 105.50, 158.08 and 44.49 is: 66.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105.50 : 158.08 = 44.49 : x
  2. Step 2: Convert to fraction form
    105.50/158.08 = 44.49/x
  3. Step 3: Cross multiply
    105.50x = 158.08 × 44.49
  4. Step 4: Simplify right side
    105.50x = 7,032.98
  5. Step 5: Solve for x
    x = 7,032.98/105.50
  6. Step 6: Final answer
    x = 66.66

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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.