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Finding the Fourth Proportional to 400.32, 600.32 and 122.58

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Solution

The fourth proportional to 400.32, 600.32 and 122.58 is: 183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.32 : 600.32 = 122.58 : x
  2. Step 2: Convert to fraction form
    400.32/600.32 = 122.58/x
  3. Step 3: Cross multiply
    400.32x = 600.32 × 122.58
  4. Step 4: Simplify right side
    400.32x = 73,588.11
  5. Step 5: Solve for x
    x = 73,588.11/400.32
  6. Step 6: Final answer
    x = 183.83

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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.