Finding the Fourth Proportional to 388,161.49, 582,265.48 and 121,921.99
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Solution
The fourth proportional to 388,161.49, 582,265.48 and 121,921.99 is: 182,890.29
Step by Step Solution
- Step 1: Write the proportion equation
388,161.49 : 582,265.48 = 121,921.99 : x - Step 2: Convert to fraction form
388,161.49/582,265.48 = 121,921.99/x - Step 3: Cross multiply
388,161.49x = 582,265.48 × 121,921.99 - Step 4: Simplify right side
388,161.49x = 70,990,965,725.10 - Step 5: Solve for x
x = 70,990,965,725.10/388,161.49 - Step 6: Final answer
x = 182,890.29
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.