Home / 445,659.12-668,156.22-268,124.54

Finding the Fourth Proportional to 445,659.12, 668,156.22 and 268,124.54

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Solution

The fourth proportional to 445,659.12, 668,156.22 and 268,124.54 is: 401,986.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,659.12 : 668,156.22 = 268,124.54 : x
  2. Step 2: Convert to fraction form
    445,659.12/668,156.22 = 268,124.54/x
  3. Step 3: Cross multiply
    445,659.12x = 668,156.22 × 268,124.54
  4. Step 4: Simplify right side
    445,659.12x = 179,149,075,794.86
  5. Step 5: Solve for x
    x = 179,149,075,794.86/445,659.12
  6. Step 6: Final answer
    x = 401,986.78

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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.