Finding the Fourth Proportional to 199,991.67, 276,005.61 and 113,976.96
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Solution
The fourth proportional to 199,991.67, 276,005.61 and 113,976.96 is: 157,297.95
Step by Step Solution
- Step 1: Write the proportion equation
199,991.67 : 276,005.61 = 113,976.96 : x - Step 2: Convert to fraction form
199,991.67/276,005.61 = 113,976.96/x - Step 3: Cross multiply
199,991.67x = 276,005.61 × 113,976.96 - Step 4: Simplify right side
199,991.67x = 31,458,280,370.75 - Step 5: Solve for x
x = 31,458,280,370.75/199,991.67 - Step 6: Final answer
x = 157,297.95
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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.