Home / 266,522.45-399,637.26-131,288.96

Finding the Fourth Proportional to 266,522.45, 399,637.26 and 131,288.96

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Solution

The fourth proportional to 266,522.45, 399,637.26 and 131,288.96 is: 196,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,522.45 : 399,637.26 = 131,288.96 : x
  2. Step 2: Convert to fraction form
    266,522.45/399,637.26 = 131,288.96/x
  3. Step 3: Cross multiply
    266,522.45x = 399,637.26 × 131,288.96
  4. Step 4: Simplify right side
    266,522.45x = 52,467,959,571.78
  5. Step 5: Solve for x
    x = 52,467,959,571.78/266,522.45
  6. Step 6: Final answer
    x = 196,861.32

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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.