Finding the Fourth Proportional to 298,107.36, 446,636.14 and 280,348.92
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Solution
The fourth proportional to 298,107.36, 446,636.14 and 280,348.92 is: 420,029.75
Step by Step Solution
- Step 1: Write the proportion equation
298,107.36 : 446,636.14 = 280,348.92 : x - Step 2: Convert to fraction form
298,107.36/446,636.14 = 280,348.92/x - Step 3: Cross multiply
298,107.36x = 446,636.14 × 280,348.92 - Step 4: Simplify right side
298,107.36x = 125,213,959,481.97 - Step 5: Solve for x
x = 125,213,959,481.97/298,107.36 - Step 6: Final answer
x = 420,029.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.