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Finding the Fourth Proportional to 400.22, 600.51 and 192.05

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Solution

The fourth proportional to 400.22, 600.51 and 192.05 is: 288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400.22 : 600.51 = 192.05 : x
  2. Step 2: Convert to fraction form
    400.22/600.51 = 192.05/x
  3. Step 3: Cross multiply
    400.22x = 600.51 × 192.05
  4. Step 4: Simplify right side
    400.22x = 115,324.94
  5. Step 5: Solve for x
    x = 115,324.94/400.22
  6. Step 6: Final answer
    x = 288.16

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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.