Finding the Fourth Proportional to 202,344.70, 279,234.09 and 111,700.63
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Solution
The fourth proportional to 202,344.70, 279,234.09 and 111,700.63 is: 154,145.99
Step by Step Solution
- Step 1: Write the proportion equation
202,344.70 : 279,234.09 = 111,700.63 : x - Step 2: Convert to fraction form
202,344.70/279,234.09 = 111,700.63/x - Step 3: Cross multiply
202,344.70x = 279,234.09 × 111,700.63 - Step 4: Simplify right side
202,344.70x = 31,190,623,770.48 - Step 5: Solve for x
x = 31,190,623,770.48/202,344.70 - Step 6: Final answer
x = 154,145.99
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1.5x scale
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.