Finding the Fourth Proportional to 206,108.90, 309,163.35 and 185,769.80
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Solution
The fourth proportional to 206,108.90, 309,163.35 and 185,769.80 is: 278,654.70
Step by Step Solution
- Step 1: Write the proportion equation
206,108.90 : 309,163.35 = 185,769.80 : x - Step 2: Convert to fraction form
206,108.90/309,163.35 = 185,769.80/x - Step 3: Cross multiply
206,108.90x = 309,163.35 × 185,769.80 - Step 4: Simplify right side
206,108.90x = 57,433,213,696.83 - Step 5: Solve for x
x = 57,433,213,696.83/206,108.90 - Step 6: Final answer
x = 278,654.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.