Finding the Fourth Proportional to 221,383.36, 305,532.60 and 135,392.65
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Solution
The fourth proportional to 221,383.36, 305,532.60 and 135,392.65 is: 186,856.27
Step by Step Solution
- Step 1: Write the proportion equation
221,383.36 : 305,532.60 = 135,392.65 : x - Step 2: Convert to fraction form
221,383.36/305,532.60 = 135,392.65/x - Step 3: Cross multiply
221,383.36x = 305,532.60 × 135,392.65 - Step 4: Simplify right side
221,383.36x = 41,366,868,375.39 - Step 5: Solve for x
x = 41,366,868,375.39/221,383.36 - Step 6: Final answer
x = 186,856.27
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1.5x scale
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.