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Finding the Fourth Proportional to 125.46, 188.11 and 44.28

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Solution

The fourth proportional to 125.46, 188.11 and 44.28 is: 66.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.46 : 188.11 = 44.28 : x
  2. Step 2: Convert to fraction form
    125.46/188.11 = 44.28/x
  3. Step 3: Cross multiply
    125.46x = 188.11 × 44.28
  4. Step 4: Simplify right side
    125.46x = 8,329.51
  5. Step 5: Solve for x
    x = 8,329.51/125.46
  6. Step 6: Final answer
    x = 66.39

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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.