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Finding the Fourth Proportional to 359,361.62, 495,910.34 and 198,213.21

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Solution

The fourth proportional to 359,361.62, 495,910.34 and 198,213.21 is: 273,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,361.62 : 495,910.34 = 198,213.21 : x
  2. Step 2: Convert to fraction form
    359,361.62/495,910.34 = 198,213.21/x
  3. Step 3: Cross multiply
    359,361.62x = 495,910.34 × 198,213.21
  4. Step 4: Simplify right side
    359,361.62x = 98,295,978,999.28
  5. Step 5: Solve for x
    x = 98,295,978,999.28/359,361.62
  6. Step 6: Final answer
    x = 273,529.43

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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.