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Finding the Fourth Proportional to 359,630.31, 496,287.39 and 198,485.36

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Solution

The fourth proportional to 359,630.31, 496,287.39 and 198,485.36 is: 273,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,630.31 : 496,287.39 = 198,485.36 : x
  2. Step 2: Convert to fraction form
    359,630.31/496,287.39 = 198,485.36/x
  3. Step 3: Cross multiply
    359,630.31x = 496,287.39 × 198,485.36
  4. Step 4: Simplify right side
    359,630.31x = 98,505,777,793.75
  5. Step 5: Solve for x
    x = 98,505,777,793.75/359,630.31
  6. Step 6: Final answer
    x = 273,908.44

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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.