Finding the Fourth Proportional to 207,946.20, 311,919.30 and 165,135.68
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Solution
The fourth proportional to 207,946.20, 311,919.30 and 165,135.68 is: 247,703.51
Step by Step Solution
- Step 1: Write the proportion equation
207,946.20 : 311,919.30 = 165,135.68 : x - Step 2: Convert to fraction form
207,946.20/311,919.30 = 165,135.68/x - Step 3: Cross multiply
207,946.20x = 311,919.30 × 165,135.68 - Step 4: Simplify right side
207,946.20x = 51,509,004,151.03 - Step 5: Solve for x
x = 51,509,004,151.03/207,946.20 - Step 6: Final answer
x = 247,703.51
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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.