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Finding the Fourth Proportional to 444,108.30, 666,162.45 and 311,138.70

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Solution

The fourth proportional to 444,108.30, 666,162.45 and 311,138.70 is: 466,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,108.30 : 666,162.45 = 311,138.70 : x
  2. Step 2: Convert to fraction form
    444,108.30/666,162.45 = 311,138.70/x
  3. Step 3: Cross multiply
    444,108.30x = 666,162.45 × 311,138.70
  4. Step 4: Simplify right side
    444,108.30x = 207,268,918,681.82
  5. Step 5: Solve for x
    x = 207,268,918,681.82/444,108.30
  6. Step 6: Final answer
    x = 466,708.05

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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.