Finding the Fourth Proportional to 206,803.61, 310,471.07 and 159,448.78
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Solution
The fourth proportional to 206,803.61, 310,471.07 and 159,448.78 is: 239,377.99
Step by Step Solution
- Step 1: Write the proportion equation
206,803.61 : 310,471.07 = 159,448.78 : x - Step 2: Convert to fraction form
206,803.61/310,471.07 = 159,448.78/x - Step 3: Cross multiply
206,803.61x = 310,471.07 × 159,448.78 - Step 4: Simplify right side
206,803.61x = 49,504,233,336.79 - Step 5: Solve for x
x = 49,504,233,336.79/206,803.61 - Step 6: Final answer
x = 239,377.99
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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.