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Finding the Fourth Proportional to 263,728.80, 395,884.80 and 164,001.60

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Solution

The fourth proportional to 263,728.80, 395,884.80 and 164,001.60 is: 246,183.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,728.80 : 395,884.80 = 164,001.60 : x
  2. Step 2: Convert to fraction form
    263,728.80/395,884.80 = 164,001.60/x
  3. Step 3: Cross multiply
    263,728.80x = 395,884.80 × 164,001.60
  4. Step 4: Simplify right side
    263,728.80x = 64,925,740,615.68
  5. Step 5: Solve for x
    x = 64,925,740,615.68/263,728.80
  6. Step 6: Final answer
    x = 246,183.73

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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.