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Finding the Fourth Proportional to 327,676.80, 451,911.36 and 255,945.60

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Solution

The fourth proportional to 327,676.80, 451,911.36 and 255,945.60 is: 352,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,676.80 : 451,911.36 = 255,945.60 : x
  2. Step 2: Convert to fraction form
    327,676.80/451,911.36 = 255,945.60/x
  3. Step 3: Cross multiply
    327,676.80x = 451,911.36 × 255,945.60
  4. Step 4: Simplify right side
    327,676.80x = 115,664,724,182.02
  5. Step 5: Solve for x
    x = 115,664,724,182.02/327,676.80
  6. Step 6: Final answer
    x = 352,984.17

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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.