Finding the Fourth Proportional to 207,794.36, 311,566.55 and 81,283.70
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Solution
The fourth proportional to 207,794.36, 311,566.55 and 81,283.70 is: 121,876.66
Step by Step Solution
- Step 1: Write the proportion equation
207,794.36 : 311,566.55 = 81,283.70 : x - Step 2: Convert to fraction form
207,794.36/311,566.55 = 81,283.70/x - Step 3: Cross multiply
207,794.36x = 311,566.55 × 81,283.70 - Step 4: Simplify right side
207,794.36x = 25,325,282,809.95 - Step 5: Solve for x
x = 25,325,282,809.95/207,794.36 - Step 6: Final answer
x = 121,876.66
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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.