Home / 400,964.38-601,396.36-131,069.90

Finding the Fourth Proportional to 400,964.38, 601,396.36 and 131,069.90

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Solution

The fourth proportional to 400,964.38, 601,396.36 and 131,069.90 is: 196,588.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,964.38 : 601,396.36 = 131,069.90 : x
  2. Step 2: Convert to fraction form
    400,964.38/601,396.36 = 131,069.90/x
  3. Step 3: Cross multiply
    400,964.38x = 601,396.36 × 131,069.90
  4. Step 4: Simplify right side
    400,964.38x = 78,824,959,295.79
  5. Step 5: Solve for x
    x = 78,824,959,295.79/400,964.38
  6. Step 6: Final answer
    x = 196,588.43

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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.