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Finding the Fourth Proportional to 200,939.92, 301,478.52 and 125,969.56

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Solution

The fourth proportional to 200,939.92, 301,478.52 and 125,969.56 is: 188,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,939.92 : 301,478.52 = 125,969.56 : x
  2. Step 2: Convert to fraction form
    200,939.92/301,478.52 = 125,969.56/x
  3. Step 3: Cross multiply
    200,939.92x = 301,478.52 × 125,969.56
  4. Step 4: Simplify right side
    200,939.92x = 37,977,116,513.85
  5. Step 5: Solve for x
    x = 37,977,116,513.85/200,939.92
  6. Step 6: Final answer
    x = 188,997.37

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1.5x scale

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.