Finding the Fourth Proportional to 188,378.09, 259,960.73 and 102,336.39
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Solution
The fourth proportional to 188,378.09, 259,960.73 and 102,336.39 is: 141,223.65
Step by Step Solution
- Step 1: Write the proportion equation
188,378.09 : 259,960.73 = 102,336.39 : x - Step 2: Convert to fraction form
188,378.09/259,960.73 = 102,336.39/x - Step 3: Cross multiply
188,378.09x = 259,960.73 × 102,336.39 - Step 4: Simplify right side
188,378.09x = 26,603,442,138.28 - Step 5: Solve for x
x = 26,603,442,138.28/188,378.09 - Step 6: Final answer
x = 141,223.65
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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.