Finding the Fourth Proportional to 198,634.97, 274,121.66 and 107,997.03
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Solution
The fourth proportional to 198,634.97, 274,121.66 and 107,997.03 is: 149,038.83
Step by Step Solution
- Step 1: Write the proportion equation
198,634.97 : 274,121.66 = 107,997.03 : x - Step 2: Convert to fraction form
198,634.97/274,121.66 = 107,997.03/x - Step 3: Cross multiply
198,634.97x = 274,121.66 × 107,997.03 - Step 4: Simplify right side
198,634.97x = 29,604,323,228.08 - Step 5: Solve for x
x = 29,604,323,228.08/198,634.97 - Step 6: Final answer
x = 149,038.83
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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.