Finding the Fourth Proportional to 195,769.50, 270,138.99 and 115,179.30
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Solution
The fourth proportional to 195,769.50, 270,138.99 and 115,179.30 is: 158,933.95
Step by Step Solution
- Step 1: Write the proportion equation
195,769.50 : 270,138.99 = 115,179.30 : x - Step 2: Convert to fraction form
195,769.50/270,138.99 = 115,179.30/x - Step 3: Cross multiply
195,769.50x = 270,138.99 × 115,179.30 - Step 4: Simplify right side
195,769.50x = 31,114,419,770.91 - Step 5: Solve for x
x = 31,114,419,770.91/195,769.50 - Step 6: Final answer
x = 158,933.95
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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.