Finding the Fourth Proportional to 201,668.76, 278,290.62 and 111,007.08
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Solution
The fourth proportional to 201,668.76, 278,290.62 and 111,007.08 is: 153,183.02
Step by Step Solution
- Step 1: Write the proportion equation
201,668.76 : 278,290.62 = 111,007.08 : x - Step 2: Convert to fraction form
201,668.76/278,290.62 = 111,007.08/x - Step 3: Cross multiply
201,668.76x = 278,290.62 × 111,007.08 - Step 4: Simplify right side
201,668.76x = 30,892,229,117.59 - Step 5: Solve for x
x = 30,892,229,117.59/201,668.76 - Step 6: Final answer
x = 153,183.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.