Finding the Fourth Proportional to 198,874.36, 274,548.18 and 153,450.28
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Solution
The fourth proportional to 198,874.36, 274,548.18 and 153,450.28 is: 211,839.75
Step by Step Solution
- Step 1: Write the proportion equation
198,874.36 : 274,548.18 = 153,450.28 : x - Step 2: Convert to fraction form
198,874.36/274,548.18 = 153,450.28/x - Step 3: Cross multiply
198,874.36x = 274,548.18 × 153,450.28 - Step 4: Simplify right side
198,874.36x = 42,129,495,094.49 - Step 5: Solve for x
x = 42,129,495,094.49/198,874.36 - Step 6: Final answer
x = 211,839.75
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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.