Home / 211,311.70-317,295.60-122,738.20

Finding the Fourth Proportional to 211,311.70, 317,295.60 and 122,738.20

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Solution

The fourth proportional to 211,311.70, 317,295.60 and 122,738.20 is: 184,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,311.70 : 317,295.60 = 122,738.20 : x
  2. Step 2: Convert to fraction form
    211,311.70/317,295.60 = 122,738.20/x
  3. Step 3: Cross multiply
    211,311.70x = 317,295.60 × 122,738.20
  4. Step 4: Simplify right side
    211,311.70x = 38,944,290,811.92
  5. Step 5: Solve for x
    x = 38,944,290,811.92/211,311.70
  6. Step 6: Final answer
    x = 184,297.84

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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.