Finding the Fourth Proportional to 186,719.26, 280,045.68 and 74,390.08
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Solution
The fourth proportional to 186,719.26, 280,045.68 and 74,390.08 is: 111,571.89
Step by Step Solution
- Step 1: Write the proportion equation
186,719.26 : 280,045.68 = 74,390.08 : x - Step 2: Convert to fraction form
186,719.26/280,045.68 = 74,390.08/x - Step 3: Cross multiply
186,719.26x = 280,045.68 × 74,390.08 - Step 4: Simplify right side
186,719.26x = 20,832,620,538.85 - Step 5: Solve for x
x = 20,832,620,538.85/186,719.26 - Step 6: Final answer
x = 111,571.89
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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.