Finding the Fourth Proportional to 408,743.03, 612,935.81 and 206,214.53
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Solution
The fourth proportional to 408,743.03, 612,935.81 and 206,214.53 is: 309,231.62
Step by Step Solution
- Step 1: Write the proportion equation
408,743.03 : 612,935.81 = 206,214.53 : x - Step 2: Convert to fraction form
408,743.03/612,935.81 = 206,214.53/x - Step 3: Cross multiply
408,743.03x = 612,935.81 × 206,214.53 - Step 4: Simplify right side
408,743.03x = 126,396,268,948.25 - Step 5: Solve for x
x = 126,396,268,948.25/408,743.03 - Step 6: Final answer
x = 309,231.62
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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.