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Finding the Fourth Proportional to 359,639.76, 496,301.84 and 198,493.65

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Solution

The fourth proportional to 359,639.76, 496,301.84 and 198,493.65 is: 273,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,639.76 : 496,301.84 = 198,493.65 : x
  2. Step 2: Convert to fraction form
    359,639.76/496,301.84 = 198,493.65/x
  3. Step 3: Cross multiply
    359,639.76x = 496,301.84 × 198,493.65
  4. Step 4: Simplify right side
    359,639.76x = 98,512,760,745.57
  5. Step 5: Solve for x
    x = 98,512,760,745.57/359,639.76
  6. Step 6: Final answer
    x = 273,920.66

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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.