Finding the Fourth Proportional to 207,901.90, 311,860.05 and 65,748.70
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Solution
The fourth proportional to 207,901.90, 311,860.05 and 65,748.70 is: 98,625.33
Step by Step Solution
- Step 1: Write the proportion equation
207,901.90 : 311,860.05 = 65,748.70 : x - Step 2: Convert to fraction form
207,901.90/311,860.05 = 65,748.70/x - Step 3: Cross multiply
207,901.90x = 311,860.05 × 65,748.70 - Step 4: Simplify right side
207,901.90x = 20,504,392,869.44 - Step 5: Solve for x
x = 20,504,392,869.44/207,901.90 - Step 6: Final answer
x = 98,625.33
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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.