Finding the Fourth Proportional to 311,718.20, 430,162.49 and 175,750.96
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Solution
The fourth proportional to 311,718.20, 430,162.49 and 175,750.96 is: 242,531.47
Step by Step Solution
- Step 1: Write the proportion equation
311,718.20 : 430,162.49 = 175,750.96 : x - Step 2: Convert to fraction form
311,718.20/430,162.49 = 175,750.96/x - Step 3: Cross multiply
311,718.20x = 430,162.49 × 175,750.96 - Step 4: Simplify right side
311,718.20x = 75,601,470,573.49 - Step 5: Solve for x
x = 75,601,470,573.49/311,718.20 - Step 6: Final answer
x = 242,531.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.