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Finding the Fourth Proportional to 269,940.69, 372,520.97 and 149,085.05

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Solution

The fourth proportional to 269,940.69, 372,520.97 and 149,085.05 is: 205,738.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,940.69 : 372,520.97 = 149,085.05 : x
  2. Step 2: Convert to fraction form
    269,940.69/372,520.97 = 149,085.05/x
  3. Step 3: Cross multiply
    269,940.69x = 372,520.97 × 149,085.05
  4. Step 4: Simplify right side
    269,940.69x = 55,537,304,830.47
  5. Step 5: Solve for x
    x = 55,537,304,830.47/269,940.69
  6. Step 6: Final answer
    x = 205,738.92

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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.