Finding the Fourth Proportional to 209,864.20, 289,612.81 and 114,370.97
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Solution
The fourth proportional to 209,864.20, 289,612.81 and 114,370.97 is: 157,832.06
Step by Step Solution
- Step 1: Write the proportion equation
209,864.20 : 289,612.81 = 114,370.97 : x - Step 2: Convert to fraction form
209,864.20/289,612.81 = 114,370.97/x - Step 3: Cross multiply
209,864.20x = 289,612.81 × 114,370.97 - Step 4: Simplify right side
209,864.20x = 33,123,298,004.13 - Step 5: Solve for x
x = 33,123,298,004.13/209,864.20 - Step 6: Final answer
x = 157,832.06
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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.