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Finding the Fourth Proportional to 645,183.99, 967,713.44 and 195,908.80

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Solution

The fourth proportional to 645,183.99, 967,713.44 and 195,908.80 is: 293,844.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,183.99 : 967,713.44 = 195,908.80 : x
  2. Step 2: Convert to fraction form
    645,183.99/967,713.44 = 195,908.80/x
  3. Step 3: Cross multiply
    645,183.99x = 967,713.44 × 195,908.80
  4. Step 4: Simplify right side
    645,183.99x = 189,583,578,774.27
  5. Step 5: Solve for x
    x = 189,583,578,774.27/645,183.99
  6. Step 6: Final answer
    x = 293,844.21

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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.