Home / 281,810.96-388,923.73-154,511.15

Finding the Fourth Proportional to 281,810.96, 388,923.73 and 154,511.15

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Solution

The fourth proportional to 281,810.96, 388,923.73 and 154,511.15 is: 213,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,810.96 : 388,923.73 = 154,511.15 : x
  2. Step 2: Convert to fraction form
    281,810.96/388,923.73 = 154,511.15/x
  3. Step 3: Cross multiply
    281,810.96x = 388,923.73 × 154,511.15
  4. Step 4: Simplify right side
    281,810.96x = 60,093,053,735.24
  5. Step 5: Solve for x
    x = 60,093,053,735.24/281,810.96
  6. Step 6: Final answer
    x = 213,238.88

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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.