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Finding the Fourth Proportional to 396,069.30, 594,103.95 and 218,922.30

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Solution

The fourth proportional to 396,069.30, 594,103.95 and 218,922.30 is: 328,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,069.30 : 594,103.95 = 218,922.30 : x
  2. Step 2: Convert to fraction form
    396,069.30/594,103.95 = 218,922.30/x
  3. Step 3: Cross multiply
    396,069.30x = 594,103.95 × 218,922.30
  4. Step 4: Simplify right side
    396,069.30x = 130,062,603,173.09
  5. Step 5: Solve for x
    x = 130,062,603,173.09/396,069.30
  6. Step 6: Final answer
    x = 328,383.45

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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.