Home / 276,286.92-381,136.39-161,490.57

Finding the Fourth Proportional to 276,286.92, 381,136.39 and 161,490.57

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Solution

The fourth proportional to 276,286.92, 381,136.39 and 161,490.57 is: 222,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,286.92 : 381,136.39 = 161,490.57 : x
  2. Step 2: Convert to fraction form
    276,286.92/381,136.39 = 161,490.57/x
  3. Step 3: Cross multiply
    276,286.92x = 381,136.39 × 161,490.57
  4. Step 4: Simplify right side
    276,286.92x = 61,549,931,376.50
  5. Step 5: Solve for x
    x = 61,549,931,376.50/276,286.92
  6. Step 6: Final answer
    x = 222,775.41

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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.