Home / 281,921.73-389,057.33-154,589.73

Finding the Fourth Proportional to 281,921.73, 389,057.33 and 154,589.73

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Solution

The fourth proportional to 281,921.73, 389,057.33 and 154,589.73 is: 213,336.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,921.73 : 389,057.33 = 154,589.73 : x
  2. Step 2: Convert to fraction form
    281,921.73/389,057.33 = 154,589.73/x
  3. Step 3: Cross multiply
    281,921.73x = 389,057.33 × 154,589.73
  4. Step 4: Simplify right side
    281,921.73x = 60,144,266,826.27
  5. Step 5: Solve for x
    x = 60,144,266,826.27/281,921.73
  6. Step 6: Final answer
    x = 213,336.75

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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.