Finding the Fourth Proportional to 207,455.80, 311,183.70 and 57,695.80
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Solution
The fourth proportional to 207,455.80, 311,183.70 and 57,695.80 is: 86,543.70
Step by Step Solution
- Step 1: Write the proportion equation
207,455.80 : 311,183.70 = 57,695.80 : x - Step 2: Convert to fraction form
207,455.80/311,183.70 = 57,695.80/x - Step 3: Cross multiply
207,455.80x = 311,183.70 × 57,695.80 - Step 4: Simplify right side
207,455.80x = 17,953,992,518.46 - Step 5: Solve for x
x = 17,953,992,518.46/207,455.80 - Step 6: Final answer
x = 86,543.70
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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.