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Finding the Fourth Proportional to 359,680.34, 496,358.90 and 198,535.43

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Solution

The fourth proportional to 359,680.34, 496,358.90 and 198,535.43 is: 273,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,680.34 : 496,358.90 = 198,535.43 : x
  2. Step 2: Convert to fraction form
    359,680.34/496,358.90 = 198,535.43/x
  3. Step 3: Cross multiply
    359,680.34x = 496,358.90 × 198,535.43
  4. Step 4: Simplify right side
    359,680.34x = 98,544,826,653.15
  5. Step 5: Solve for x
    x = 98,544,826,653.15/359,680.34
  6. Step 6: Final answer
    x = 273,978.91

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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.