Home / 231,599.20-347,139.60-131,807.20

Finding the Fourth Proportional to 231,599.20, 347,139.60 and 131,807.20

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Solution

The fourth proportional to 231,599.20, 347,139.60 and 131,807.20 is: 197,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,599.20 : 347,139.60 = 131,807.20 : x
  2. Step 2: Convert to fraction form
    231,599.20/347,139.60 = 131,807.20/x
  3. Step 3: Cross multiply
    231,599.20x = 347,139.60 × 131,807.20
  4. Step 4: Simplify right side
    231,599.20x = 45,755,498,685.12
  5. Step 5: Solve for x
    x = 45,755,498,685.12/231,599.20
  6. Step 6: Final answer
    x = 197,563.28

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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.