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Finding the Fourth Proportional to 396,048.30, 594,072.45 and 218,901.30

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Solution

The fourth proportional to 396,048.30, 594,072.45 and 218,901.30 is: 328,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,048.30 : 594,072.45 = 218,901.30 : x
  2. Step 2: Convert to fraction form
    396,048.30/594,072.45 = 218,901.30/x
  3. Step 3: Cross multiply
    396,048.30x = 594,072.45 × 218,901.30
  4. Step 4: Simplify right side
    396,048.30x = 130,043,231,599.19
  5. Step 5: Solve for x
    x = 130,043,231,599.19/396,048.30
  6. Step 6: Final answer
    x = 328,351.95

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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.