Finding the Fourth Proportional to 305,213.18, 421,192.06 and 169,247.20
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Solution
The fourth proportional to 305,213.18, 421,192.06 and 169,247.20 is: 233,559.96
Step by Step Solution
- Step 1: Write the proportion equation
305,213.18 : 421,192.06 = 169,247.20 : x - Step 2: Convert to fraction form
305,213.18/421,192.06 = 169,247.20/x - Step 3: Cross multiply
305,213.18x = 421,192.06 × 169,247.20 - Step 4: Simplify right side
305,213.18x = 71,285,576,817.23 - Step 5: Solve for x
x = 71,285,576,817.23/305,213.18 - Step 6: Final answer
x = 233,559.96
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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.