Home / 217,782.20-300,518.52-122,267

Finding the Fourth Proportional to 217,782.20, 300,518.52 and 122,267

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Solution

The fourth proportional to 217,782.20, 300,518.52 and 122,267 is: 168,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,782.20 : 300,518.52 = 122,267 : x
  2. Step 2: Convert to fraction form
    217,782.20/300,518.52 = 122,267/x
  3. Step 3: Cross multiply
    217,782.20x = 300,518.52 × 122,267
  4. Step 4: Simplify right side
    217,782.20x = 36,743,497,884.84
  5. Step 5: Solve for x
    x = 36,743,497,884.84/217,782.20
  6. Step 6: Final answer
    x = 168,716.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.