Finding the Fourth Proportional to 289,276.29, 399,190.19 and 158,451.84
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Solution
The fourth proportional to 289,276.29, 399,190.19 and 158,451.84 is: 218,657.46
Step by Step Solution
- Step 1: Write the proportion equation
289,276.29 : 399,190.19 = 158,451.84 : x - Step 2: Convert to fraction form
289,276.29/399,190.19 = 158,451.84/x - Step 3: Cross multiply
289,276.29x = 399,190.19 × 158,451.84 - Step 4: Simplify right side
289,276.29x = 63,252,419,323.19 - Step 5: Solve for x
x = 63,252,419,323.19/289,276.29 - Step 6: Final answer
x = 218,657.46
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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.