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Finding the Fourth Proportional to 359,517.88, 496,137.38 and 198,378.92

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Solution

The fourth proportional to 359,517.88, 496,137.38 and 198,378.92 is: 273,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,517.88 : 496,137.38 = 198,378.92 : x
  2. Step 2: Convert to fraction form
    359,517.88/496,137.38 = 198,378.92/x
  3. Step 3: Cross multiply
    359,517.88x = 496,137.38 × 198,378.92
  4. Step 4: Simplify right side
    359,517.88x = 98,423,197,616.03
  5. Step 5: Solve for x
    x = 98,423,197,616.03/359,517.88
  6. Step 6: Final answer
    x = 273,764.40

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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.