Home / 331,012.20-496,518.30-120,622.80

Finding the Fourth Proportional to 331,012.20, 496,518.30 and 120,622.80

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Solution

The fourth proportional to 331,012.20, 496,518.30 and 120,622.80 is: 180,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,012.20 : 496,518.30 = 120,622.80 : x
  2. Step 2: Convert to fraction form
    331,012.20/496,518.30 = 120,622.80/x
  3. Step 3: Cross multiply
    331,012.20x = 496,518.30 × 120,622.80
  4. Step 4: Simplify right side
    331,012.20x = 59,891,427,597.24
  5. Step 5: Solve for x
    x = 59,891,427,597.24/331,012.20
  6. Step 6: Final answer
    x = 180,934.20

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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.