Finding the Fourth Proportional to 212,716.73, 293,545.27 and 115,921.43
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Solution
The fourth proportional to 212,716.73, 293,545.27 and 115,921.43 is: 159,969.49
Step by Step Solution
- Step 1: Write the proportion equation
212,716.73 : 293,545.27 = 115,921.43 : x - Step 2: Convert to fraction form
212,716.73/293,545.27 = 115,921.43/x - Step 3: Cross multiply
212,716.73x = 293,545.27 × 115,921.43 - Step 4: Simplify right side
212,716.73x = 34,028,186,594.05 - Step 5: Solve for x
x = 34,028,186,594.05/212,716.73 - Step 6: Final answer
x = 159,969.49
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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.