Home / 263,616.48-395,425.20-76,629.60

Finding the Fourth Proportional to 263,616.48, 395,425.20 and 76,629.60

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Solution

The fourth proportional to 263,616.48, 395,425.20 and 76,629.60 is: 114,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,616.48 : 395,425.20 = 76,629.60 : x
  2. Step 2: Convert to fraction form
    263,616.48/395,425.20 = 76,629.60/x
  3. Step 3: Cross multiply
    263,616.48x = 395,425.20 × 76,629.60
  4. Step 4: Simplify right side
    263,616.48x = 30,301,274,905.92
  5. Step 5: Solve for x
    x = 30,301,274,905.92/263,616.48
  6. Step 6: Final answer
    x = 114,944.54

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1.5x scale

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.