Finding the Fourth Proportional to 288,134.09, 397,677.09 and 171,855.02
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Solution
The fourth proportional to 288,134.09, 397,677.09 and 171,855.02 is: 237,190.97
Step by Step Solution
- Step 1: Write the proportion equation
288,134.09 : 397,677.09 = 171,855.02 : x - Step 2: Convert to fraction form
288,134.09/397,677.09 = 171,855.02/x - Step 3: Cross multiply
288,134.09x = 397,677.09 × 171,855.02 - Step 4: Simplify right side
288,134.09x = 68,342,804,255.49 - Step 5: Solve for x
x = 68,342,804,255.49/288,134.09 - Step 6: Final answer
x = 237,190.97
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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.