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Finding the Fourth Proportional to 359,508.21, 496,131.71 and 198,373.64

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Solution

The fourth proportional to 359,508.21, 496,131.71 and 198,373.64 is: 273,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,508.21 : 496,131.71 = 198,373.64 : x
  2. Step 2: Convert to fraction form
    359,508.21/496,131.71 = 198,373.64/x
  3. Step 3: Cross multiply
    359,508.21x = 496,131.71 × 198,373.64
  4. Step 4: Simplify right side
    359,508.21x = 98,419,449,759.60
  5. Step 5: Solve for x
    x = 98,419,449,759.60/359,508.21
  6. Step 6: Final answer
    x = 273,761.34

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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.