Finding the Fourth Proportional to 198,791.35, 274,325.80 and 108,144.99
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Solution
The fourth proportional to 198,791.35, 274,325.80 and 108,144.99 is: 149,236.68
Step by Step Solution
- Step 1: Write the proportion equation
198,791.35 : 274,325.80 = 108,144.99 : x - Step 2: Convert to fraction form
198,791.35/274,325.80 = 108,144.99/x - Step 3: Cross multiply
198,791.35x = 274,325.80 × 108,144.99 - Step 4: Simplify right side
198,791.35x = 29,666,960,897.74 - Step 5: Solve for x
x = 29,666,960,897.74/198,791.35 - Step 6: Final answer
x = 149,236.68
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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.