Home / 385,081.43-531,198.81-223,918.56

Finding the Fourth Proportional to 385,081.43, 531,198.81 and 223,918.56

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Solution

The fourth proportional to 385,081.43, 531,198.81 and 223,918.56 is: 308,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,081.43 : 531,198.81 = 223,918.56 : x
  2. Step 2: Convert to fraction form
    385,081.43/531,198.81 = 223,918.56/x
  3. Step 3: Cross multiply
    385,081.43x = 531,198.81 × 223,918.56
  4. Step 4: Simplify right side
    385,081.43x = 118,945,272,608.91
  5. Step 5: Solve for x
    x = 118,945,272,608.91/385,081.43
  6. Step 6: Final answer
    x = 308,883.43

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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.