Home / 397,288.91-595,951.73-131,072.69

Finding the Fourth Proportional to 397,288.91, 595,951.73 and 131,072.69

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Solution

The fourth proportional to 397,288.91, 595,951.73 and 131,072.69 is: 196,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,288.91 : 595,951.73 = 131,072.69 : x
  2. Step 2: Convert to fraction form
    397,288.91/595,951.73 = 131,072.69/x
  3. Step 3: Cross multiply
    397,288.91x = 595,951.73 × 131,072.69
  4. Step 4: Simplify right side
    397,288.91x = 78,112,997,687.29
  5. Step 5: Solve for x
    x = 78,112,997,687.29/397,288.91
  6. Step 6: Final answer
    x = 196,615.10

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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.