Home / 278,181.36-383,890.32-150,856.38

Finding the Fourth Proportional to 278,181.36, 383,890.32 and 150,856.38

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Solution

The fourth proportional to 278,181.36, 383,890.32 and 150,856.38 is: 208,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,181.36 : 383,890.32 = 150,856.38 : x
  2. Step 2: Convert to fraction form
    278,181.36/383,890.32 = 150,856.38/x
  3. Step 3: Cross multiply
    278,181.36x = 383,890.32 × 150,856.38
  4. Step 4: Simplify right side
    278,181.36x = 57,912,303,992.24
  5. Step 5: Solve for x
    x = 57,912,303,992.24/278,181.36
  6. Step 6: Final answer
    x = 208,181.83

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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.