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Finding the Fourth Proportional to 269,708.91, 372,185.67 and 154,906.80

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Solution

The fourth proportional to 269,708.91, 372,185.67 and 154,906.80 is: 213,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,708.91 : 372,185.67 = 154,906.80 : x
  2. Step 2: Convert to fraction form
    269,708.91/372,185.67 = 154,906.80/x
  3. Step 3: Cross multiply
    269,708.91x = 372,185.67 × 154,906.80
  4. Step 4: Simplify right side
    269,708.91x = 57,654,091,145.56
  5. Step 5: Solve for x
    x = 57,654,091,145.56/269,708.91
  6. Step 6: Final answer
    x = 213,764.13

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1.5x scale

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.