Home / 331,331.56-496,712.70-115,162.20

Finding the Fourth Proportional to 331,331.56, 496,712.70 and 115,162.20

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Solution

The fourth proportional to 331,331.56, 496,712.70 and 115,162.20 is: 172,644.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,331.56 : 496,712.70 = 115,162.20 : x
  2. Step 2: Convert to fraction form
    331,331.56/496,712.70 = 115,162.20/x
  3. Step 3: Cross multiply
    331,331.56x = 496,712.70 × 115,162.20
  4. Step 4: Simplify right side
    331,331.56x = 57,202,527,299.94
  5. Step 5: Solve for x
    x = 57,202,527,299.94/331,331.56
  6. Step 6: Final answer
    x = 172,644.37

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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.