Finding the Fourth Proportional to 179,809.10, 269,616.45 and 74,638.70
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Solution
The fourth proportional to 179,809.10, 269,616.45 and 74,638.70 is: 111,917.70
Step by Step Solution
- Step 1: Write the proportion equation
179,809.10 : 269,616.45 = 74,638.70 : x - Step 2: Convert to fraction form
179,809.10/269,616.45 = 74,638.70/x - Step 3: Cross multiply
179,809.10x = 269,616.45 × 74,638.70 - Step 4: Simplify right side
179,809.10x = 20,123,821,326.62 - Step 5: Solve for x
x = 20,123,821,326.62/179,809.10 - Step 6: Final answer
x = 111,917.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.