Home / 455,243.85-682,956.90-135,395.10

Finding the Fourth Proportional to 455,243.85, 682,956.90 and 135,395.10

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Solution

The fourth proportional to 455,243.85, 682,956.90 and 135,395.10 is: 203,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,243.85 : 682,956.90 = 135,395.10 : x
  2. Step 2: Convert to fraction form
    455,243.85/682,956.90 = 135,395.10/x
  3. Step 3: Cross multiply
    455,243.85x = 682,956.90 × 135,395.10
  4. Step 4: Simplify right side
    455,243.85x = 92,469,017,771.19
  5. Step 5: Solve for x
    x = 92,469,017,771.19/455,243.85
  6. Step 6: Final answer
    x = 203,119.75

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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.