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Finding the Fourth Proportional to 358,640.88, 494,917.08 and 197,498.88

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Solution

The fourth proportional to 358,640.88, 494,917.08 and 197,498.88 is: 272,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,640.88 : 494,917.08 = 197,498.88 : x
  2. Step 2: Convert to fraction form
    358,640.88/494,917.08 = 197,498.88/x
  3. Step 3: Cross multiply
    358,640.88x = 494,917.08 × 197,498.88
  4. Step 4: Simplify right side
    358,640.88x = 97,745,568,992.87
  5. Step 5: Solve for x
    x = 97,745,568,992.87/358,640.88
  6. Step 6: Final answer
    x = 272,544.42

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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.