Finding the Fourth Proportional to 305,192.70, 421,170.98 and 169,232.38
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Solution
The fourth proportional to 305,192.70, 421,170.98 and 169,232.38 is: 233,543.48
Step by Step Solution
- Step 1: Write the proportion equation
305,192.70 : 421,170.98 = 169,232.38 : x - Step 2: Convert to fraction form
305,192.70/421,170.98 = 169,232.38/x - Step 3: Cross multiply
305,192.70x = 421,170.98 × 169,232.38 - Step 4: Simplify right side
305,192.70x = 71,275,765,433.24 - Step 5: Solve for x
x = 71,275,765,433.24/305,192.70 - Step 6: Final answer
x = 233,543.48
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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.