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Finding the Fourth Proportional to 470,183.70, 649,019.06 and 279,195.73

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Solution

The fourth proportional to 470,183.70, 649,019.06 and 279,195.73 is: 385,388.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,183.70 : 649,019.06 = 279,195.73 : x
  2. Step 2: Convert to fraction form
    470,183.70/649,019.06 = 279,195.73/x
  3. Step 3: Cross multiply
    470,183.70x = 649,019.06 × 279,195.73
  4. Step 4: Simplify right side
    470,183.70x = 181,203,350,240.61
  5. Step 5: Solve for x
    x = 181,203,350,240.61/470,183.70
  6. Step 6: Final answer
    x = 385,388.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.