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Finding the Fourth Proportional to 263,910.80, 395,866.20 and 64,229.60

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Solution

The fourth proportional to 263,910.80, 395,866.20 and 64,229.60 is: 96,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,910.80 : 395,866.20 = 64,229.60 : x
  2. Step 2: Convert to fraction form
    263,910.80/395,866.20 = 64,229.60/x
  3. Step 3: Cross multiply
    263,910.80x = 395,866.20 × 64,229.60
  4. Step 4: Simplify right side
    263,910.80x = 25,426,327,679.52
  5. Step 5: Solve for x
    x = 25,426,327,679.52/263,910.80
  6. Step 6: Final answer
    x = 96,344.40

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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.