Finding the Fourth Proportional to 209,004.13, 288,388.24 and 124,142.05
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Solution
The fourth proportional to 209,004.13, 288,388.24 and 124,142.05 is: 171,293.78
Step by Step Solution
- Step 1: Write the proportion equation
209,004.13 : 288,388.24 = 124,142.05 : x - Step 2: Convert to fraction form
209,004.13/288,388.24 = 124,142.05/x - Step 3: Cross multiply
209,004.13x = 288,388.24 × 124,142.05 - Step 4: Simplify right side
209,004.13x = 35,801,107,309.49 - Step 5: Solve for x
x = 35,801,107,309.49/209,004.13 - Step 6: Final answer
x = 171,293.78
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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.