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Finding the Fourth Proportional to 226,022.40, 312,076.80 and 198,028.80

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Solution

The fourth proportional to 226,022.40, 312,076.80 and 198,028.80 is: 273,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,022.40 : 312,076.80 = 198,028.80 : x
  2. Step 2: Convert to fraction form
    226,022.40/312,076.80 = 198,028.80/x
  3. Step 3: Cross multiply
    226,022.40x = 312,076.80 × 198,028.80
  4. Step 4: Simplify right side
    226,022.40x = 61,800,194,211.84
  5. Step 5: Solve for x
    x = 61,800,194,211.84/226,022.40
  6. Step 6: Final answer
    x = 273,425.09

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1.5x scale

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.