Finding the Fourth Proportional to 270,129.94, 405,217.92 and 80,578.09
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Solution
The fourth proportional to 270,129.94, 405,217.92 and 80,578.09 is: 120,874.00
Step by Step Solution
- Step 1: Write the proportion equation
270,129.94 : 405,217.92 = 80,578.09 : x - Step 2: Convert to fraction form
270,129.94/405,217.92 = 80,578.09/x - Step 3: Cross multiply
270,129.94x = 405,217.92 × 80,578.09 - Step 4: Simplify right side
270,129.94x = 32,651,686,027.37 - Step 5: Solve for x
x = 32,651,686,027.37/270,129.94 - Step 6: Final answer
x = 120,874.00
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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.