Finding the Fourth Proportional to 207,290.26, 310,902.15 and 74,145.70
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Solution
The fourth proportional to 207,290.26, 310,902.15 and 74,145.70 is: 111,206.66
Step by Step Solution
- Step 1: Write the proportion equation
207,290.26 : 310,902.15 = 74,145.70 : x - Step 2: Convert to fraction form
207,290.26/310,902.15 = 74,145.70/x - Step 3: Cross multiply
207,290.26x = 310,902.15 × 74,145.70 - Step 4: Simplify right side
207,290.26x = 23,052,057,543.26 - Step 5: Solve for x
x = 23,052,057,543.26/207,290.26 - Step 6: Final answer
x = 111,206.66
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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.