Finding the Fourth Proportional to 311,177.80, 434,715.80 and 311,177.80
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Solution
The fourth proportional to 311,177.80, 434,715.80 and 311,177.80 is: 434,715.80
Step by Step Solution
- Step 1: Write the proportion equation
311,177.80 : 434,715.80 = 311,177.80 : x - Step 2: Convert to fraction form
311,177.80/434,715.80 = 311,177.80/x - Step 3: Cross multiply
311,177.80x = 434,715.80 × 311,177.80 - Step 4: Simplify right side
311,177.80x = 135,273,906,269.24 - Step 5: Solve for x
x = 135,273,906,269.24/311,177.80 - Step 6: Final answer
x = 434,715.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.