Home / 281,837.92-388,936.30-154,514.40

Finding the Fourth Proportional to 281,837.92, 388,936.30 and 154,514.40

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Solution

The fourth proportional to 281,837.92, 388,936.30 and 154,514.40 is: 213,229.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,837.92 : 388,936.30 = 154,514.40 : x
  2. Step 2: Convert to fraction form
    281,837.92/388,936.30 = 154,514.40/x
  3. Step 3: Cross multiply
    281,837.92x = 388,936.30 × 154,514.40
  4. Step 4: Simplify right side
    281,837.92x = 60,096,259,032.72
  5. Step 5: Solve for x
    x = 60,096,259,032.72/281,837.92
  6. Step 6: Final answer
    x = 213,229.86

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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.