Home / 490,618.20-736,212.84-206,288.16

Finding the Fourth Proportional to 490,618.20, 736,212.84 and 206,288.16

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Solution

The fourth proportional to 490,618.20, 736,212.84 and 206,288.16 is: 309,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,618.20 : 736,212.84 = 206,288.16 : x
  2. Step 2: Convert to fraction form
    490,618.20/736,212.84 = 206,288.16/x
  3. Step 3: Cross multiply
    490,618.20x = 736,212.84 × 206,288.16
  4. Step 4: Simplify right side
    490,618.20x = 151,871,992,131.97
  5. Step 5: Solve for x
    x = 151,871,992,131.97/490,618.20
  6. Step 6: Final answer
    x = 309,552.30

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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.