Home / 331,226.20-496,839.30-81,908.20

Finding the Fourth Proportional to 331,226.20, 496,839.30 and 81,908.20

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Solution

The fourth proportional to 331,226.20, 496,839.30 and 81,908.20 is: 122,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,226.20 : 496,839.30 = 81,908.20 : x
  2. Step 2: Convert to fraction form
    331,226.20/496,839.30 = 81,908.20/x
  3. Step 3: Cross multiply
    331,226.20x = 496,839.30 × 81,908.20
  4. Step 4: Simplify right side
    331,226.20x = 40,695,212,752.26
  5. Step 5: Solve for x
    x = 40,695,212,752.26/331,226.20
  6. Step 6: Final answer
    x = 122,862.30

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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.