Finding the Fourth Proportional to 198,787.36, 274,236.22 and 118,169.07
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Solution
The fourth proportional to 198,787.36, 274,236.22 and 118,169.07 is: 163,019.62
Step by Step Solution
- Step 1: Write the proportion equation
198,787.36 : 274,236.22 = 118,169.07 : x - Step 2: Convert to fraction form
198,787.36/274,236.22 = 118,169.07/x - Step 3: Cross multiply
198,787.36x = 274,236.22 × 118,169.07 - Step 4: Simplify right side
198,787.36x = 32,406,239,077.72 - Step 5: Solve for x
x = 32,406,239,077.72/198,787.36 - Step 6: Final answer
x = 163,019.62
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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.