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Finding the Fourth Proportional to 360,108.60, 496,959.89 and 198,974.03

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Solution

The fourth proportional to 360,108.60, 496,959.89 and 198,974.03 is: 274,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,108.60 : 496,959.89 = 198,974.03 : x
  2. Step 2: Convert to fraction form
    360,108.60/496,959.89 = 198,974.03/x
  3. Step 3: Cross multiply
    360,108.60x = 496,959.89 × 198,974.03
  4. Step 4: Simplify right side
    360,108.60x = 98,882,114,453.93
  5. Step 5: Solve for x
    x = 98,882,114,453.93/360,108.60
  6. Step 6: Final answer
    x = 274,589.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.