Home / 331,214.20-496,821.30-81,896.20

Finding the Fourth Proportional to 331,214.20, 496,821.30 and 81,896.20

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Solution

The fourth proportional to 331,214.20, 496,821.30 and 81,896.20 is: 122,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,214.20 : 496,821.30 = 81,896.20 : x
  2. Step 2: Convert to fraction form
    331,214.20/496,821.30 = 81,896.20/x
  3. Step 3: Cross multiply
    331,214.20x = 496,821.30 × 81,896.20
  4. Step 4: Simplify right side
    331,214.20x = 40,687,776,549.06
  5. Step 5: Solve for x
    x = 40,687,776,549.06/331,214.20
  6. Step 6: Final answer
    x = 122,844.30

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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.