Finding the Fourth Proportional to 207,953.70, 311,930.55 and 192,207.30
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Solution
The fourth proportional to 207,953.70, 311,930.55 and 192,207.30 is: 288,310.95
Step by Step Solution
- Step 1: Write the proportion equation
207,953.70 : 311,930.55 = 192,207.30 : x - Step 2: Convert to fraction form
207,953.70/311,930.55 = 192,207.30/x - Step 3: Cross multiply
207,953.70x = 311,930.55 × 192,207.30 - Step 4: Simplify right side
207,953.70x = 59,955,328,803.02 - Step 5: Solve for x
x = 59,955,328,803.02/207,953.70 - Step 6: Final answer
x = 288,310.95
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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.