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Finding the Fourth Proportional to 359,267.80, 495,793.02 and 198,128.56

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Solution

The fourth proportional to 359,267.80, 495,793.02 and 198,128.56 is: 273,419.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,267.80 : 495,793.02 = 198,128.56 : x
  2. Step 2: Convert to fraction form
    359,267.80/495,793.02 = 198,128.56/x
  3. Step 3: Cross multiply
    359,267.80x = 495,793.02 × 198,128.56
  4. Step 4: Simplify right side
    359,267.80x = 98,230,757,110.65
  5. Step 5: Solve for x
    x = 98,230,757,110.65/359,267.80
  6. Step 6: Final answer
    x = 273,419.32

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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.