Finding the Fourth Proportional to 230,305.68, 345,429.36 and 80,539.92
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Solution
The fourth proportional to 230,305.68, 345,429.36 and 80,539.92 is: 120,799.68
Step by Step Solution
- Step 1: Write the proportion equation
230,305.68 : 345,429.36 = 80,539.92 : x - Step 2: Convert to fraction form
230,305.68/345,429.36 = 80,539.92/x - Step 3: Cross multiply
230,305.68x = 345,429.36 × 80,539.92 - Step 4: Simplify right side
230,305.68x = 27,820,853,020.05 - Step 5: Solve for x
x = 27,820,853,020.05/230,305.68 - Step 6: Final answer
x = 120,799.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.