Finding the Fourth Proportional to 197,991.80, 273,212.36 and 111,959.58
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Solution
The fourth proportional to 197,991.80, 273,212.36 and 111,959.58 is: 154,494.99
Step by Step Solution
- Step 1: Write the proportion equation
197,991.80 : 273,212.36 = 111,959.58 : x - Step 2: Convert to fraction form
197,991.80/273,212.36 = 111,959.58/x - Step 3: Cross multiply
197,991.80x = 273,212.36 × 111,959.58 - Step 4: Simplify right side
197,991.80x = 30,588,741,356.31 - Step 5: Solve for x
x = 30,588,741,356.31/197,991.80 - Step 6: Final answer
x = 154,494.99
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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.