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Finding the Fourth Proportional to 297,815.80, 447,069.30 and 179,620.60

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Solution

The fourth proportional to 297,815.80, 447,069.30 and 179,620.60 is: 269,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,815.80 : 447,069.30 = 179,620.60 : x
  2. Step 2: Convert to fraction form
    297,815.80/447,069.30 = 179,620.60/x
  3. Step 3: Cross multiply
    297,815.80x = 447,069.30 × 179,620.60
  4. Step 4: Simplify right side
    297,815.80x = 80,302,855,907.58
  5. Step 5: Solve for x
    x = 80,302,855,907.58/297,815.80
  6. Step 6: Final answer
    x = 269,639.34

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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.