Finding the Fourth Proportional to 221,742.63, 332,609.22 and 71,982.68
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Solution
The fourth proportional to 221,742.63, 332,609.22 and 71,982.68 is: 107,972.48
Step by Step Solution
- Step 1: Write the proportion equation
221,742.63 : 332,609.22 = 71,982.68 : x - Step 2: Convert to fraction form
221,742.63/332,609.22 = 71,982.68/x - Step 3: Cross multiply
221,742.63x = 332,609.22 × 71,982.68 - Step 4: Simplify right side
221,742.63x = 23,942,101,385.26 - Step 5: Solve for x
x = 23,942,101,385.26/221,742.63 - Step 6: Final answer
x = 107,972.48
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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.