Home / 231,497.20-347,245.80-91,183.60

Finding the Fourth Proportional to 231,497.20, 347,245.80 and 91,183.60

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Solution

The fourth proportional to 231,497.20, 347,245.80 and 91,183.60 is: 136,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,497.20 : 347,245.80 = 91,183.60 : x
  2. Step 2: Convert to fraction form
    231,497.20/347,245.80 = 91,183.60/x
  3. Step 3: Cross multiply
    231,497.20x = 347,245.80 × 91,183.60
  4. Step 4: Simplify right side
    231,497.20x = 31,663,122,128.88
  5. Step 5: Solve for x
    x = 31,663,122,128.88/231,497.20
  6. Step 6: Final answer
    x = 136,775.40

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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.