Finding the Fourth Proportional to 207,965.10, 311,947.65 and 74,849.70
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Solution
The fourth proportional to 207,965.10, 311,947.65 and 74,849.70 is: 112,274.55
Step by Step Solution
- Step 1: Write the proportion equation
207,965.10 : 311,947.65 = 74,849.70 : x - Step 2: Convert to fraction form
207,965.10/311,947.65 = 74,849.70/x - Step 3: Cross multiply
207,965.10x = 311,947.65 × 74,849.70 - Step 4: Simplify right side
207,965.10x = 23,349,188,018.21 - Step 5: Solve for x
x = 23,349,188,018.21/207,965.10 - Step 6: Final answer
x = 112,274.55
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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.