Finding the Fourth Proportional to 198,907.29, 274,368.11 and 121,347.50
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Solution
The fourth proportional to 198,907.29, 274,368.11 and 121,347.50 is: 167,383.92
Step by Step Solution
- Step 1: Write the proportion equation
198,907.29 : 274,368.11 = 121,347.50 : x - Step 2: Convert to fraction form
198,907.29/274,368.11 = 121,347.50/x - Step 3: Cross multiply
198,907.29x = 274,368.11 × 121,347.50 - Step 4: Simplify right side
198,907.29x = 33,293,882,249.65 - Step 5: Solve for x
x = 33,293,882,249.65/198,907.29 - Step 6: Final answer
x = 167,383.92
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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.