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Finding the Fourth Proportional to 397,384.40, 595,855.15 and 131,073.41

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Solution

The fourth proportional to 397,384.40, 595,855.15 and 131,073.41 is: 196,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,384.40 : 595,855.15 = 131,073.41 : x
  2. Step 2: Convert to fraction form
    397,384.40/595,855.15 = 131,073.41/x
  3. Step 3: Cross multiply
    397,384.40x = 595,855.15 × 131,073.41
  4. Step 4: Simplify right side
    397,384.40x = 78,100,766,376.56
  5. Step 5: Solve for x
    x = 78,100,766,376.56/397,384.40
  6. Step 6: Final answer
    x = 196,537.07

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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.