Home / 206,343.56-309,515.44-136,206.48

Finding the Fourth Proportional to 206,343.56, 309,515.44 and 136,206.48

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Solution

The fourth proportional to 206,343.56, 309,515.44 and 136,206.48 is: 204,309.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,343.56 : 309,515.44 = 136,206.48 : x
  2. Step 2: Convert to fraction form
    206,343.56/309,515.44 = 136,206.48/x
  3. Step 3: Cross multiply
    206,343.56x = 309,515.44 × 136,206.48
  4. Step 4: Simplify right side
    206,343.56x = 42,158,008,588.05
  5. Step 5: Solve for x
    x = 42,158,008,588.05/206,343.56
  6. Step 6: Final answer
    x = 204,309.79

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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.