Finding the Fourth Proportional to 198,242.19, 273,578.30 and 112,201.17
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Solution
The fourth proportional to 198,242.19, 273,578.30 and 112,201.17 is: 154,839.92
Step by Step Solution
- Step 1: Write the proportion equation
198,242.19 : 273,578.30 = 112,201.17 : x - Step 2: Convert to fraction form
198,242.19/273,578.30 = 112,201.17/x - Step 3: Cross multiply
198,242.19x = 273,578.30 × 112,201.17 - Step 4: Simplify right side
198,242.19x = 30,695,804,785.61 - Step 5: Solve for x
x = 30,695,804,785.61/198,242.19 - Step 6: Final answer
x = 154,839.92
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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.