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Finding the Fourth Proportional to 396,003.20, 594,004.80 and 196,246.40

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Solution

The fourth proportional to 396,003.20, 594,004.80 and 196,246.40 is: 294,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,003.20 : 594,004.80 = 196,246.40 : x
  2. Step 2: Convert to fraction form
    396,003.20/594,004.80 = 196,246.40/x
  3. Step 3: Cross multiply
    396,003.20x = 594,004.80 × 196,246.40
  4. Step 4: Simplify right side
    396,003.20x = 116,571,303,582.72
  5. Step 5: Solve for x
    x = 116,571,303,582.72/396,003.20
  6. Step 6: Final answer
    x = 294,369.60

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Similar ratio
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1.5x scale

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.