Finding the Fourth Proportional to 218,463.23, 301,463.84 and 121,664.18
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Solution
The fourth proportional to 218,463.23, 301,463.84 and 121,664.18 is: 167,887.99
Step by Step Solution
- Step 1: Write the proportion equation
218,463.23 : 301,463.84 = 121,664.18 : x - Step 2: Convert to fraction form
218,463.23/301,463.84 = 121,664.18/x - Step 3: Cross multiply
218,463.23x = 301,463.84 × 121,664.18 - Step 4: Simplify right side
218,463.23x = 36,677,351,951.07 - Step 5: Solve for x
x = 36,677,351,951.07/218,463.23 - Step 6: Final answer
x = 167,887.99
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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.