Finding the Fourth Proportional to 188,771.12, 282,959.80 and 76,528.80
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Solution
The fourth proportional to 188,771.12, 282,959.80 and 76,528.80 is: 114,713.38
Step by Step Solution
- Step 1: Write the proportion equation
188,771.12 : 282,959.80 = 76,528.80 : x - Step 2: Convert to fraction form
188,771.12/282,959.80 = 76,528.80/x - Step 3: Cross multiply
188,771.12x = 282,959.80 × 76,528.80 - Step 4: Simplify right side
188,771.12x = 21,654,573,942.24 - Step 5: Solve for x
x = 21,654,573,942.24/188,771.12 - Step 6: Final answer
x = 114,713.38
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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.