Finding the Fourth Proportional to 305,225.75, 421,190.99 and 169,254.70
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Solution
The fourth proportional to 305,225.75, 421,190.99 and 169,254.70 is: 233,560.09
Step by Step Solution
- Step 1: Write the proportion equation
305,225.75 : 421,190.99 = 169,254.70 : x - Step 2: Convert to fraction form
305,225.75/421,190.99 = 169,254.70/x - Step 3: Cross multiply
305,225.75x = 421,190.99 × 169,254.70 - Step 4: Simplify right side
305,225.75x = 71,288,553,390.61 - Step 5: Solve for x
x = 71,288,553,390.61/305,225.75 - Step 6: Final answer
x = 233,560.09
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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.