Finding the Fourth Proportional to 222,576.09, 307,153.94 and 121,974.09
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Solution
The fourth proportional to 222,576.09, 307,153.94 and 121,974.09 is: 168,323.66
Step by Step Solution
- Step 1: Write the proportion equation
222,576.09 : 307,153.94 = 121,974.09 : x - Step 2: Convert to fraction form
222,576.09/307,153.94 = 121,974.09/x - Step 3: Cross multiply
222,576.09x = 307,153.94 × 121,974.09 - Step 4: Simplify right side
222,576.09x = 37,464,821,711.54 - Step 5: Solve for x
x = 37,464,821,711.54/222,576.09 - Step 6: Final answer
x = 168,323.66
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1.5x scale
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.