Finding the Fourth Proportional to 199,202.14, 274,912.55 and 121,710.96
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Solution
The fourth proportional to 199,202.14, 274,912.55 and 121,710.96 is: 167,969.43
Step by Step Solution
- Step 1: Write the proportion equation
199,202.14 : 274,912.55 = 121,710.96 : x - Step 2: Convert to fraction form
199,202.14/274,912.55 = 121,710.96/x - Step 3: Cross multiply
199,202.14x = 274,912.55 × 121,710.96 - Step 4: Simplify right side
199,202.14x = 33,459,870,376.55 - Step 5: Solve for x
x = 33,459,870,376.55/199,202.14 - Step 6: Final answer
x = 167,969.43
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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.