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Finding the Fourth Proportional to 394,546.72, 544,446.48 and 224,749.60

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Solution

The fourth proportional to 394,546.72, 544,446.48 and 224,749.60 is: 310,138.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,546.72 : 544,446.48 = 224,749.60 : x
  2. Step 2: Convert to fraction form
    394,546.72/544,446.48 = 224,749.60/x
  3. Step 3: Cross multiply
    394,546.72x = 544,446.48 × 224,749.60
  4. Step 4: Simplify right side
    394,546.72x = 122,364,128,601.41
  5. Step 5: Solve for x
    x = 122,364,128,601.41/394,546.72
  6. Step 6: Final answer
    x = 310,138.50

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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.