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Finding the Fourth Proportional to 453,395.78, 680,131.74 and 137,855.42

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Solution

The fourth proportional to 453,395.78, 680,131.74 and 137,855.42 is: 206,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,395.78 : 680,131.74 = 137,855.42 : x
  2. Step 2: Convert to fraction form
    453,395.78/680,131.74 = 137,855.42/x
  3. Step 3: Cross multiply
    453,395.78x = 680,131.74 × 137,855.42
  4. Step 4: Simplify right side
    453,395.78x = 93,759,846,673.03
  5. Step 5: Solve for x
    x = 93,759,846,673.03/453,395.78
  6. Step 6: Final answer
    x = 206,794.71

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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.