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Finding the Fourth Proportional to 394,032.72, 543,630.24 and 224,224.32

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Solution

The fourth proportional to 394,032.72, 543,630.24 and 224,224.32 is: 309,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,032.72 : 543,630.24 = 224,224.32 : x
  2. Step 2: Convert to fraction form
    394,032.72/543,630.24 = 224,224.32/x
  3. Step 3: Cross multiply
    394,032.72x = 543,630.24 × 224,224.32
  4. Step 4: Simplify right side
    394,032.72x = 121,895,120,895.44
  5. Step 5: Solve for x
    x = 121,895,120,895.44/394,032.72
  6. Step 6: Final answer
    x = 309,352.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.