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Finding the Fourth Proportional to 269,991.43, 372,611.24 and 149,145.91

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Solution

The fourth proportional to 269,991.43, 372,611.24 and 149,145.91 is: 205,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,991.43 : 372,611.24 = 149,145.91 : x
  2. Step 2: Convert to fraction form
    269,991.43/372,611.24 = 149,145.91/x
  3. Step 3: Cross multiply
    269,991.43x = 372,611.24 × 149,145.91
  4. Step 4: Simplify right side
    269,991.43x = 55,573,441,348.07
  5. Step 5: Solve for x
    x = 55,573,441,348.07/269,991.43
  6. Step 6: Final answer
    x = 205,834.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.