Finding the Fourth Proportional to 222,545.13, 307,112.28 and 121,940.97
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Solution
The fourth proportional to 222,545.13, 307,112.28 and 121,940.97 is: 168,278.53
Step by Step Solution
- Step 1: Write the proportion equation
222,545.13 : 307,112.28 = 121,940.97 : x - Step 2: Convert to fraction form
222,545.13/307,112.28 = 121,940.97/x - Step 3: Cross multiply
222,545.13x = 307,112.28 × 121,940.97 - Step 4: Simplify right side
222,545.13x = 37,449,567,176.85 - Step 5: Solve for x
x = 37,449,567,176.85/222,545.13 - Step 6: Final answer
x = 168,278.53
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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.