Home / 400.12-600.17-126.23

Finding the Fourth Proportional to 400.12, 600.17 and 126.23

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Solution

The fourth proportional to 400.12, 600.17 and 126.23 is: 189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.12 : 600.17 = 126.23 : x
  2. Step 2: Convert to fraction form
    400.12/600.17 = 126.23/x
  3. Step 3: Cross multiply
    400.12x = 600.17 × 126.23
  4. Step 4: Simplify right side
    400.12x = 75,755.83
  5. Step 5: Solve for x
    x = 75,755.83/400.12
  6. Step 6: Final answer
    x = 189.33

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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.