Finding the Fourth Proportional to 303,381.36, 418,648.21 and 167,428.09
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Solution
The fourth proportional to 303,381.36, 418,648.21 and 167,428.09 is: 231,040.79
Step by Step Solution
- Step 1: Write the proportion equation
303,381.36 : 418,648.21 = 167,428.09 : x - Step 2: Convert to fraction form
303,381.36/418,648.21 = 167,428.09/x - Step 3: Cross multiply
303,381.36x = 418,648.21 × 167,428.09 - Step 4: Simplify right side
303,381.36x = 70,093,470,182.22 - Step 5: Solve for x
x = 70,093,470,182.22/303,381.36 - Step 6: Final answer
x = 231,040.79
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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.