Home / 331,014.80-496,279.20-131,236.40

Finding the Fourth Proportional to 331,014.80, 496,279.20 and 131,236.40

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Solution

The fourth proportional to 331,014.80, 496,279.20 and 131,236.40 is: 196,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,014.80 : 496,279.20 = 131,236.40 : x
  2. Step 2: Convert to fraction form
    331,014.80/496,279.20 = 131,236.40/x
  3. Step 3: Cross multiply
    331,014.80x = 496,279.20 × 131,236.40
  4. Step 4: Simplify right side
    331,014.80x = 65,129,895,602.88
  5. Step 5: Solve for x
    x = 65,129,895,602.88/331,014.80
  6. Step 6: Final answer
    x = 196,758.26

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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.