Finding the Fourth Proportional to 207,910.10, 311,865.15 and 148,423.70
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Solution
The fourth proportional to 207,910.10, 311,865.15 and 148,423.70 is: 222,635.55
Step by Step Solution
- Step 1: Write the proportion equation
207,910.10 : 311,865.15 = 148,423.70 : x - Step 2: Convert to fraction form
207,910.10/311,865.15 = 148,423.70/x - Step 3: Cross multiply
207,910.10x = 311,865.15 × 148,423.70 - Step 4: Simplify right side
207,910.10x = 46,288,179,464.06 - Step 5: Solve for x
x = 46,288,179,464.06/207,910.10 - Step 6: Final answer
x = 222,635.55
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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.