Finding the Fourth Proportional to 206,803.91, 310,471.51 and 159,449.08
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Solution
The fourth proportional to 206,803.91, 310,471.51 and 159,449.08 is: 239,378.44
Step by Step Solution
- Step 1: Write the proportion equation
206,803.91 : 310,471.51 = 159,449.08 : x - Step 2: Convert to fraction form
206,803.91/310,471.51 = 159,449.08/x - Step 3: Cross multiply
206,803.91x = 310,471.51 × 159,449.08 - Step 4: Simplify right side
206,803.91x = 49,504,396,058.84 - Step 5: Solve for x
x = 49,504,396,058.84/206,803.91 - Step 6: Final answer
x = 239,378.44
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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.