Finding the Fourth Proportional to 311,715.03, 430,166.84 and 168,475.08
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Solution
The fourth proportional to 311,715.03, 430,166.84 and 168,475.08 is: 232,495.66
Step by Step Solution
- Step 1: Write the proportion equation
311,715.03 : 430,166.84 = 168,475.08 : x - Step 2: Convert to fraction form
311,715.03/430,166.84 = 168,475.08/x - Step 3: Cross multiply
311,715.03x = 430,166.84 × 168,475.08 - Step 4: Simplify right side
311,715.03x = 72,472,391,939.97 - Step 5: Solve for x
x = 72,472,391,939.97/311,715.03 - Step 6: Final answer
x = 232,495.66
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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.