Finding the Fourth Proportional to 198,718.24, 274,238.16 and 113,851.68
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Solution
The fourth proportional to 198,718.24, 274,238.16 and 113,851.68 is: 157,119.32
Step by Step Solution
- Step 1: Write the proportion equation
198,718.24 : 274,238.16 = 113,851.68 : x - Step 2: Convert to fraction form
198,718.24/274,238.16 = 113,851.68/x - Step 3: Cross multiply
198,718.24x = 274,238.16 × 113,851.68 - Step 4: Simplify right side
198,718.24x = 31,222,475,236.11 - Step 5: Solve for x
x = 31,222,475,236.11/198,718.24 - Step 6: Final answer
x = 157,119.32
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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.