Finding the Fourth Proportional to 211,976.82, 292,544.33 and 121,361.31
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Solution
The fourth proportional to 211,976.82, 292,544.33 and 121,361.31 is: 167,487.95
Step by Step Solution
- Step 1: Write the proportion equation
211,976.82 : 292,544.33 = 121,361.31 : x - Step 2: Convert to fraction form
211,976.82/292,544.33 = 121,361.31/x - Step 3: Cross multiply
211,976.82x = 292,544.33 × 121,361.31 - Step 4: Simplify right side
211,976.82x = 35,503,562,515.07 - Step 5: Solve for x
x = 35,503,562,515.07/211,976.82 - Step 6: Final answer
x = 167,487.95
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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.