Home / 354,121.12-485,937.92-322,045.12

Finding the Fourth Proportional to 354,121.12, 485,937.92 and 322,045.12

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Solution

The fourth proportional to 354,121.12, 485,937.92 and 322,045.12 is: 441,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,121.12 : 485,937.92 = 322,045.12 : x
  2. Step 2: Convert to fraction form
    354,121.12/485,937.92 = 322,045.12/x
  3. Step 3: Cross multiply
    354,121.12x = 485,937.92 × 322,045.12
  4. Step 4: Simplify right side
    354,121.12x = 156,493,935,758.95
  5. Step 5: Solve for x
    x = 156,493,935,758.95/354,121.12
  6. Step 6: Final answer
    x = 441,922.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.