Home / 212,318.34-318,469.26-79,198.34

Finding the Fourth Proportional to 212,318.34, 318,469.26 and 79,198.34

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Solution

The fourth proportional to 212,318.34, 318,469.26 and 79,198.34 is: 118,794.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,318.34 : 318,469.26 = 79,198.34 : x
  2. Step 2: Convert to fraction form
    212,318.34/318,469.26 = 79,198.34/x
  3. Step 3: Cross multiply
    212,318.34x = 318,469.26 × 79,198.34
  4. Step 4: Simplify right side
    212,318.34x = 25,222,236,733.03
  5. Step 5: Solve for x
    x = 25,222,236,733.03/212,318.34
  6. Step 6: Final answer
    x = 118,794.43

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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.