Finding the Fourth Proportional to 150,623.05, 207,861.92 and 82,638.79
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Solution
The fourth proportional to 150,623.05, 207,861.92 and 82,638.79 is: 114,042.69
Step by Step Solution
- Step 1: Write the proportion equation
150,623.05 : 207,861.92 = 82,638.79 : x - Step 2: Convert to fraction form
150,623.05/207,861.92 = 82,638.79/x - Step 3: Cross multiply
150,623.05x = 207,861.92 × 82,638.79 - Step 4: Simplify right side
150,623.05x = 17,177,457,555.88 - Step 5: Solve for x
x = 17,177,457,555.88/150,623.05 - Step 6: Final answer
x = 114,042.69
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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.