Finding the Fourth Proportional to 207,937.80, 311,906.70 and 114,625.80
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Solution
The fourth proportional to 207,937.80, 311,906.70 and 114,625.80 is: 171,938.70
Step by Step Solution
- Step 1: Write the proportion equation
207,937.80 : 311,906.70 = 114,625.80 : x - Step 2: Convert to fraction form
207,937.80/311,906.70 = 114,625.80/x - Step 3: Cross multiply
207,937.80x = 311,906.70 × 114,625.80 - Step 4: Simplify right side
207,937.80x = 35,752,555,012.86 - Step 5: Solve for x
x = 35,752,555,012.86/207,937.80 - Step 6: Final answer
x = 171,938.70
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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.