Finding the Fourth Proportional to 198,567.20, 274,062.59 and 117,979.21
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Solution
The fourth proportional to 198,567.20, 274,062.59 and 117,979.21 is: 162,834.99
Step by Step Solution
- Step 1: Write the proportion equation
198,567.20 : 274,062.59 = 117,979.21 : x - Step 2: Convert to fraction form
198,567.20/274,062.59 = 117,979.21/x - Step 3: Cross multiply
198,567.20x = 274,062.59 × 117,979.21 - Step 4: Simplify right side
198,567.20x = 32,333,687,858.75 - Step 5: Solve for x
x = 32,333,687,858.75/198,567.20 - Step 6: Final answer
x = 162,834.99
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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.