Finding the Fourth Proportional to 209,437.17, 289,014.87 and 113,944.26
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Solution
The fourth proportional to 209,437.17, 289,014.87 and 113,944.26 is: 157,238.50
Step by Step Solution
- Step 1: Write the proportion equation
209,437.17 : 289,014.87 = 113,944.26 : x - Step 2: Convert to fraction form
209,437.17/289,014.87 = 113,944.26/x - Step 3: Cross multiply
209,437.17x = 289,014.87 × 113,944.26 - Step 4: Simplify right side
209,437.17x = 32,931,585,491.15 - Step 5: Solve for x
x = 32,931,585,491.15/209,437.17 - Step 6: Final answer
x = 157,238.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.