Finding the Fourth Proportional to 209,133.86, 288,629.58 and 124,251.26
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Solution
The fourth proportional to 209,133.86, 288,629.58 and 124,251.26 is: 171,481.50
Step by Step Solution
- Step 1: Write the proportion equation
209,133.86 : 288,629.58 = 124,251.26 : x - Step 2: Convert to fraction form
209,133.86/288,629.58 = 124,251.26/x - Step 3: Cross multiply
209,133.86x = 288,629.58 × 124,251.26 - Step 4: Simplify right side
209,133.86x = 35,862,588,988.27 - Step 5: Solve for x
x = 35,862,588,988.27/209,133.86 - Step 6: Final answer
x = 171,481.50
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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.