Home / 200,629.09-300,982.97-74,270.31

Finding the Fourth Proportional to 200,629.09, 300,982.97 and 74,270.31

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Solution

The fourth proportional to 200,629.09, 300,982.97 and 74,270.31 is: 111,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,629.09 : 300,982.97 = 74,270.31 : x
  2. Step 2: Convert to fraction form
    200,629.09/300,982.97 = 74,270.31/x
  3. Step 3: Cross multiply
    200,629.09x = 300,982.97 × 74,270.31
  4. Step 4: Simplify right side
    200,629.09x = 22,354,098,486.62
  5. Step 5: Solve for x
    x = 22,354,098,486.62/200,629.09
  6. Step 6: Final answer
    x = 111,420.03

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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.