Finding the Fourth Proportional to 175,749.80, 263,624.70 and 80,979.80
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Solution
The fourth proportional to 175,749.80, 263,624.70 and 80,979.80 is: 121,469.70
Step by Step Solution
- Step 1: Write the proportion equation
175,749.80 : 263,624.70 = 80,979.80 : x - Step 2: Convert to fraction form
175,749.80/263,624.70 = 80,979.80/x - Step 3: Cross multiply
175,749.80x = 263,624.70 × 80,979.80 - Step 4: Simplify right side
175,749.80x = 21,348,275,481.06 - Step 5: Solve for x
x = 21,348,275,481.06/175,749.80 - Step 6: Final answer
x = 121,469.70
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1.5x scale
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.