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Finding the Fourth Proportional to 396,316.80, 594,037.80 and 218,951.10

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Solution

The fourth proportional to 396,316.80, 594,037.80 and 218,951.10 is: 328,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,316.80 : 594,037.80 = 218,951.10 : x
  2. Step 2: Convert to fraction form
    396,316.80/594,037.80 = 218,951.10/x
  3. Step 3: Cross multiply
    396,316.80x = 594,037.80 × 218,951.10
  4. Step 4: Simplify right side
    396,316.80x = 130,065,229,751.58
  5. Step 5: Solve for x
    x = 130,065,229,751.58/396,316.80
  6. Step 6: Final answer
    x = 328,185.00

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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.