Finding the Fourth Proportional to 281,893.99, 422,799.95 and 82,160.75
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Solution
The fourth proportional to 281,893.99, 422,799.95 and 82,160.75 is: 123,229.16
Step by Step Solution
- Step 1: Write the proportion equation
281,893.99 : 422,799.95 = 82,160.75 : x - Step 2: Convert to fraction form
281,893.99/422,799.95 = 82,160.75/x - Step 3: Cross multiply
281,893.99x = 422,799.95 × 82,160.75 - Step 4: Simplify right side
281,893.99x = 34,737,560,991.96 - Step 5: Solve for x
x = 34,737,560,991.96/281,893.99 - Step 6: Final answer
x = 123,229.16
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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.