Home / 231,620.20-347,171.10-131,828.20

Finding the Fourth Proportional to 231,620.20, 347,171.10 and 131,828.20

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Solution

The fourth proportional to 231,620.20, 347,171.10 and 131,828.20 is: 197,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,620.20 : 347,171.10 = 131,828.20 : x
  2. Step 2: Convert to fraction form
    231,620.20/347,171.10 = 131,828.20/x
  3. Step 3: Cross multiply
    231,620.20x = 347,171.10 × 131,828.20
  4. Step 4: Simplify right side
    231,620.20x = 45,766,941,205.02
  5. Step 5: Solve for x
    x = 45,766,941,205.02/231,620.20
  6. Step 6: Final answer
    x = 197,594.77

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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.