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Finding the Fourth Proportional to 276,081.38, 414,219.26 and 135,938.42

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Solution

The fourth proportional to 276,081.38, 414,219.26 and 135,938.42 is: 203,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,081.38 : 414,219.26 = 135,938.42 : x
  2. Step 2: Convert to fraction form
    276,081.38/414,219.26 = 135,938.42/x
  3. Step 3: Cross multiply
    276,081.38x = 414,219.26 × 135,938.42
  4. Step 4: Simplify right side
    276,081.38x = 56,308,311,737.97
  5. Step 5: Solve for x
    x = 56,308,311,737.97/276,081.38
  6. Step 6: Final answer
    x = 203,955.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.