Finding the Third Proportional to 209,798.63 and 316,439.81
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Solution
The third proportional to 209,798.63 and 316,439.81 is: 477,286.99
Step by Step Solution
- Step 1: Write the proportion equation
209,798.63 : 316,439.81 = 316,439.81 : x - Step 2: Convert to fraction form
209,798.63/316,439.81 = 316,439.81/x - Step 3: Cross multiply
209,798.63x = 316,439.81 × 316,439.81 - Step 4: Simplify right side
209,798.63x = 100,134,154,935.04 - Step 5: Solve for x
x = 100,134,154,935.04/209,798.63 - Step 6: Final answer
x = 477,286.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.