Home / 329,163.20-493,975.20-211,121.60

Finding the Fourth Proportional to 329,163.20, 493,975.20 and 211,121.60

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Solution

The fourth proportional to 329,163.20, 493,975.20 and 211,121.60 is: 316,830.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,163.20 : 493,975.20 = 211,121.60 : x
  2. Step 2: Convert to fraction form
    329,163.20/493,975.20 = 211,121.60/x
  3. Step 3: Cross multiply
    329,163.20x = 493,975.20 × 211,121.60
  4. Step 4: Simplify right side
    329,163.20x = 104,288,834,584.32
  5. Step 5: Solve for x
    x = 104,288,834,584.32/329,163.20
  6. Step 6: Final answer
    x = 316,830.18

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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.