Finding the Fourth Proportional to 198,851.63, 274,369.77 and 112,790.07
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Solution
The fourth proportional to 198,851.63, 274,369.77 and 112,790.07 is: 155,624.50
Step by Step Solution
- Step 1: Write the proportion equation
198,851.63 : 274,369.77 = 112,790.07 : x - Step 2: Convert to fraction form
198,851.63/274,369.77 = 112,790.07/x - Step 3: Cross multiply
198,851.63x = 274,369.77 × 112,790.07 - Step 4: Simplify right side
198,851.63x = 30,946,185,564.18 - Step 5: Solve for x
x = 30,946,185,564.18/198,851.63 - Step 6: Final answer
x = 155,624.50
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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.