Finding the Fourth Proportional to 282,163.96, 389,385.12 and 154,841.68
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Solution
The fourth proportional to 282,163.96, 389,385.12 and 154,841.68 is: 213,680.89
Step by Step Solution
- Step 1: Write the proportion equation
282,163.96 : 389,385.12 = 154,841.68 : x - Step 2: Convert to fraction form
282,163.96/389,385.12 = 154,841.68/x - Step 3: Cross multiply
282,163.96x = 389,385.12 × 154,841.68 - Step 4: Simplify right side
282,163.96x = 60,293,046,147.80 - Step 5: Solve for x
x = 60,293,046,147.80/282,163.96 - Step 6: Final answer
x = 213,680.89
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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.