Finding the Fourth Proportional to 259,741.26, 389,650.84 and 91,231.88
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Solution
The fourth proportional to 259,741.26, 389,650.84 and 91,231.88 is: 136,861.50
Step by Step Solution
- Step 1: Write the proportion equation
259,741.26 : 389,650.84 = 91,231.88 : x - Step 2: Convert to fraction form
259,741.26/389,650.84 = 91,231.88/x - Step 3: Cross multiply
259,741.26x = 389,650.84 × 91,231.88 - Step 4: Simplify right side
259,741.26x = 35,548,578,692.23 - Step 5: Solve for x
x = 35,548,578,692.23/259,741.26 - Step 6: Final answer
x = 136,861.50
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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.