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Finding the Fourth Proportional to 225,850.29, 311,668.74 and 139,786.44

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Solution

The fourth proportional to 225,850.29, 311,668.74 and 139,786.44 is: 192,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,850.29 : 311,668.74 = 139,786.44 : x
  2. Step 2: Convert to fraction form
    225,850.29/311,668.74 = 139,786.44/x
  3. Step 3: Cross multiply
    225,850.29x = 311,668.74 × 139,786.44
  4. Step 4: Simplify right side
    225,850.29x = 43,567,063,623.89
  5. Step 5: Solve for x
    x = 43,567,063,623.89/225,850.29
  6. Step 6: Final answer
    x = 192,902.40

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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.