Finding the Fourth Proportional to 282,163.44, 389,390.40 and 154,850.88
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Solution
The fourth proportional to 282,163.44, 389,390.40 and 154,850.88 is: 213,696.88
Step by Step Solution
- Step 1: Write the proportion equation
282,163.44 : 389,390.40 = 154,850.88 : x - Step 2: Convert to fraction form
282,163.44/389,390.40 = 154,850.88/x - Step 3: Cross multiply
282,163.44x = 389,390.40 × 154,850.88 - Step 4: Simplify right side
282,163.44x = 60,297,446,103.55 - Step 5: Solve for x
x = 60,297,446,103.55/282,163.44 - Step 6: Final answer
x = 213,696.88
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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.