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Finding the Fourth Proportional to 444,108.80, 666,163.20 and 311,139.20

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Solution

The fourth proportional to 444,108.80, 666,163.20 and 311,139.20 is: 466,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,108.80 : 666,163.20 = 311,139.20 : x
  2. Step 2: Convert to fraction form
    444,108.80/666,163.20 = 311,139.20/x
  3. Step 3: Cross multiply
    444,108.80x = 666,163.20 × 311,139.20
  4. Step 4: Simplify right side
    444,108.80x = 207,269,485,117.44
  5. Step 5: Solve for x
    x = 207,269,485,117.44/444,108.80
  6. Step 6: Final answer
    x = 466,708.80

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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.