Home / 423,977.40-635,771.70-187,198.20

Finding the Fourth Proportional to 423,977.40, 635,771.70 and 187,198.20

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Solution

The fourth proportional to 423,977.40, 635,771.70 and 187,198.20 is: 280,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,977.40 : 635,771.70 = 187,198.20 : x
  2. Step 2: Convert to fraction form
    423,977.40/635,771.70 = 187,198.20/x
  3. Step 3: Cross multiply
    423,977.40x = 635,771.70 × 187,198.20
  4. Step 4: Simplify right side
    423,977.40x = 119,015,317,850.94
  5. Step 5: Solve for x
    x = 119,015,317,850.94/423,977.40
  6. Step 6: Final answer
    x = 280,711.47

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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.