Finding the Fourth Proportional to 207,963.20, 311,944.80 and 165,152.68
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Solution
The fourth proportional to 207,963.20, 311,944.80 and 165,152.68 is: 247,729.02
Step by Step Solution
- Step 1: Write the proportion equation
207,963.20 : 311,944.80 = 165,152.68 : x - Step 2: Convert to fraction form
207,963.20/311,944.80 = 165,152.68/x - Step 3: Cross multiply
207,963.20x = 311,944.80 × 165,152.68 - Step 4: Simplify right side
207,963.20x = 51,518,519,732.06 - Step 5: Solve for x
x = 51,518,519,732.06/207,963.20 - Step 6: Final answer
x = 247,729.02
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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.