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Finding the Fourth Proportional to 394,165.44, 543,991.68 and 224,372.16

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Solution

The fourth proportional to 394,165.44, 543,991.68 and 224,372.16 is: 309,658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,165.44 : 543,991.68 = 224,372.16 : x
  2. Step 2: Convert to fraction form
    394,165.44/543,991.68 = 224,372.16/x
  3. Step 3: Cross multiply
    394,165.44x = 543,991.68 × 224,372.16
  4. Step 4: Simplify right side
    394,165.44x = 122,056,588,263.63
  5. Step 5: Solve for x
    x = 122,056,588,263.63/394,165.44
  6. Step 6: Final answer
    x = 309,658.27

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1.5x scale

Why These Related Problems?

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