Finding the Fourth Proportional to 305,152.80, 421,135.80 and 169,229.44
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Solution
The fourth proportional to 305,152.80, 421,135.80 and 169,229.44 is: 233,550.46
Step by Step Solution
- Step 1: Write the proportion equation
305,152.80 : 421,135.80 = 169,229.44 : x - Step 2: Convert to fraction form
305,152.80/421,135.80 = 169,229.44/x - Step 3: Cross multiply
305,152.80x = 421,135.80 × 169,229.44 - Step 4: Simplify right side
305,152.80x = 71,268,575,597.95 - Step 5: Solve for x
x = 71,268,575,597.95/305,152.80 - Step 6: Final answer
x = 233,550.46
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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.