Finding the Fourth Proportional to 207,916.70, 311,875.05 and 192,170.30
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Solution
The fourth proportional to 207,916.70, 311,875.05 and 192,170.30 is: 288,255.45
Step by Step Solution
- Step 1: Write the proportion equation
207,916.70 : 311,875.05 = 192,170.30 : x - Step 2: Convert to fraction form
207,916.70/311,875.05 = 192,170.30/x - Step 3: Cross multiply
207,916.70x = 311,875.05 × 192,170.30 - Step 4: Simplify right side
207,916.70x = 59,933,121,921.02 - Step 5: Solve for x
x = 59,933,121,921.02/207,916.70 - Step 6: Final answer
x = 288,255.45
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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.