Finding the Fourth Proportional to 198,670.40, 274,244.57 and 122,220.48
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Solution
The fourth proportional to 198,670.40, 274,244.57 and 122,220.48 is: 168,713.12
Step by Step Solution
- Step 1: Write the proportion equation
198,670.40 : 274,244.57 = 122,220.48 : x - Step 2: Convert to fraction form
198,670.40/274,244.57 = 122,220.48/x - Step 3: Cross multiply
198,670.40x = 274,244.57 × 122,220.48 - Step 4: Simplify right side
198,670.40x = 33,518,302,371.69 - Step 5: Solve for x
x = 33,518,302,371.69/198,670.40 - Step 6: Final answer
x = 168,713.12
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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.