Home / 211,375.20-317,077.20-67,269.60

Finding the Fourth Proportional to 211,375.20, 317,077.20 and 67,269.60

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Solution

The fourth proportional to 211,375.20, 317,077.20 and 67,269.60 is: 100,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,375.20 : 317,077.20 = 67,269.60 : x
  2. Step 2: Convert to fraction form
    211,375.20/317,077.20 = 67,269.60/x
  3. Step 3: Cross multiply
    211,375.20x = 317,077.20 × 67,269.60
  4. Step 4: Simplify right side
    211,375.20x = 21,329,656,413.12
  5. Step 5: Solve for x
    x = 21,329,656,413.12/211,375.20
  6. Step 6: Final answer
    x = 100,908.98

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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.