Home / 276,289.92-381,140.52-161,493.57

Finding the Fourth Proportional to 276,289.92, 381,140.52 and 161,493.57

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Solution

The fourth proportional to 276,289.92, 381,140.52 and 161,493.57 is: 222,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,289.92 : 381,140.52 = 161,493.57 : x
  2. Step 2: Convert to fraction form
    276,289.92/381,140.52 = 161,493.57/x
  3. Step 3: Cross multiply
    276,289.92x = 381,140.52 × 161,493.57
  4. Step 4: Simplify right side
    276,289.92x = 61,551,743,246.46
  5. Step 5: Solve for x
    x = 61,551,743,246.46/276,289.92
  6. Step 6: Final answer
    x = 222,779.55

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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.