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Finding the Fourth Proportional to 321,173.80, 481,568.70 and 196,604.20

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Solution

The fourth proportional to 321,173.80, 481,568.70 and 196,604.20 is: 294,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,173.80 : 481,568.70 = 196,604.20 : x
  2. Step 2: Convert to fraction form
    321,173.80/481,568.70 = 196,604.20/x
  3. Step 3: Cross multiply
    321,173.80x = 481,568.70 × 196,604.20
  4. Step 4: Simplify right side
    321,173.80x = 94,678,429,008.54
  5. Step 5: Solve for x
    x = 94,678,429,008.54/321,173.80
  6. Step 6: Final answer
    x = 294,788.77

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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.