Home / 335,817.40-503,288.70-135,974.20

Finding the Fourth Proportional to 335,817.40, 503,288.70 and 135,974.20

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Solution

The fourth proportional to 335,817.40, 503,288.70 and 135,974.20 is: 203,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,817.40 : 503,288.70 = 135,974.20 : x
  2. Step 2: Convert to fraction form
    335,817.40/503,288.70 = 135,974.20/x
  3. Step 3: Cross multiply
    335,817.40x = 503,288.70 × 135,974.20
  4. Step 4: Simplify right side
    335,817.40x = 68,434,278,351.54
  5. Step 5: Solve for x
    x = 68,434,278,351.54/335,817.40
  6. Step 6: Final answer
    x = 203,784.19

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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.