Finding the Fourth Proportional to 311,951.09, 430,492.78 and 168,711.14
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Solution
The fourth proportional to 311,951.09, 430,492.78 and 168,711.14 is: 232,821.52
Step by Step Solution
- Step 1: Write the proportion equation
311,951.09 : 430,492.78 = 168,711.14 : x - Step 2: Convert to fraction form
311,951.09/430,492.78 = 168,711.14/x - Step 3: Cross multiply
311,951.09x = 430,492.78 × 168,711.14 - Step 4: Simplify right side
311,951.09x = 72,628,925,523.11 - Step 5: Solve for x
x = 72,628,925,523.11/311,951.09 - Step 6: Final answer
x = 232,821.52
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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.