Finding the Fourth Proportional to 207,476.20, 311,179.98 and 74,336.68
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Solution
The fourth proportional to 207,476.20, 311,179.98 and 74,336.68 is: 111,492.72
Step by Step Solution
- Step 1: Write the proportion equation
207,476.20 : 311,179.98 = 74,336.68 : x - Step 2: Convert to fraction form
207,476.20/311,179.98 = 74,336.68/x - Step 3: Cross multiply
207,476.20x = 311,179.98 × 74,336.68 - Step 4: Simplify right side
207,476.20x = 23,132,086,595.67 - Step 5: Solve for x
x = 23,132,086,595.67/207,476.20 - Step 6: Final answer
x = 111,492.72
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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.