Finding the Fourth Proportional to 198,933.36, 274,652.07 and 138,481.98
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Solution
The fourth proportional to 198,933.36, 274,652.07 and 138,481.98 is: 191,191.47
Step by Step Solution
- Step 1: Write the proportion equation
198,933.36 : 274,652.07 = 138,481.98 : x - Step 2: Convert to fraction form
198,933.36/274,652.07 = 138,481.98/x - Step 3: Cross multiply
198,933.36x = 274,652.07 × 138,481.98 - Step 4: Simplify right side
198,933.36x = 38,034,362,464.70 - Step 5: Solve for x
x = 38,034,362,464.70/198,933.36 - Step 6: Final answer
x = 191,191.47
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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.