Finding the Fourth Proportional to 218,321.97, 301,268.21 and 122,810.28
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Solution
The fourth proportional to 218,321.97, 301,268.21 and 122,810.28 is: 169,469.12
Step by Step Solution
- Step 1: Write the proportion equation
218,321.97 : 301,268.21 = 122,810.28 : x - Step 2: Convert to fraction form
218,321.97/301,268.21 = 122,810.28/x - Step 3: Cross multiply
218,321.97x = 301,268.21 × 122,810.28 - Step 4: Simplify right side
218,321.97x = 36,998,832,611.15 - Step 5: Solve for x
x = 36,998,832,611.15/218,321.97 - Step 6: Final answer
x = 169,469.12
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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.