Finding the Fourth Proportional to 270,126.94, 405,213.42 and 80,575.09
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Solution
The fourth proportional to 270,126.94, 405,213.42 and 80,575.09 is: 120,869.50
Step by Step Solution
- Step 1: Write the proportion equation
270,126.94 : 405,213.42 = 80,575.09 : x - Step 2: Convert to fraction form
270,126.94/405,213.42 = 80,575.09/x - Step 3: Cross multiply
270,126.94x = 405,213.42 × 80,575.09 - Step 4: Simplify right side
270,126.94x = 32,650,107,785.71 - Step 5: Solve for x
x = 32,650,107,785.71/270,126.94 - Step 6: Final answer
x = 120,869.50
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1.5x scale
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.