Finding the Fourth Proportional to 201,626.62, 278,245.74 and 110,991.70
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Solution
The fourth proportional to 201,626.62, 278,245.74 and 110,991.70 is: 153,169.10
Step by Step Solution
- Step 1: Write the proportion equation
201,626.62 : 278,245.74 = 110,991.70 : x - Step 2: Convert to fraction form
201,626.62/278,245.74 = 110,991.70/x - Step 3: Cross multiply
201,626.62x = 278,245.74 × 110,991.70 - Step 4: Simplify right side
201,626.62x = 30,882,967,700.36 - Step 5: Solve for x
x = 30,882,967,700.36/201,626.62 - Step 6: Final answer
x = 153,169.10
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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.