Finding the Fourth Proportional to 198,516.82, 273,842.28 and 121,982.74
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Solution
The fourth proportional to 198,516.82, 273,842.28 and 121,982.74 is: 168,268.02
Step by Step Solution
- Step 1: Write the proportion equation
198,516.82 : 273,842.28 = 121,982.74 : x - Step 2: Convert to fraction form
198,516.82/273,842.28 = 121,982.74/x - Step 3: Cross multiply
198,516.82x = 273,842.28 × 121,982.74 - Step 4: Simplify right side
198,516.82x = 33,404,031,642.25 - Step 5: Solve for x
x = 33,404,031,642.25/198,516.82 - Step 6: Final answer
x = 168,268.02
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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.