Finding the Fourth Proportional to 206,975.84, 310,217.70 and 185,816.60
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Solution
The fourth proportional to 206,975.84, 310,217.70 and 185,816.60 is: 278,503.99
Step by Step Solution
- Step 1: Write the proportion equation
206,975.84 : 310,217.70 = 185,816.60 : x - Step 2: Convert to fraction form
206,975.84/310,217.70 = 185,816.60/x - Step 3: Cross multiply
206,975.84x = 310,217.70 × 185,816.60 - Step 4: Simplify right side
206,975.84x = 57,643,598,273.82 - Step 5: Solve for x
x = 57,643,598,273.82/206,975.84 - Step 6: Final answer
x = 278,503.99
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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.