Finding the Fourth Proportional to 209,749.28, 289,452.56 and 114,255.99
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Solution
The fourth proportional to 209,749.28, 289,452.56 and 114,255.99 is: 157,672.48
Step by Step Solution
- Step 1: Write the proportion equation
209,749.28 : 289,452.56 = 114,255.99 : x - Step 2: Convert to fraction form
209,749.28/289,452.56 = 114,255.99/x - Step 3: Cross multiply
209,749.28x = 289,452.56 × 114,255.99 - Step 4: Simplify right side
209,749.28x = 33,071,688,229.55 - Step 5: Solve for x
x = 33,071,688,229.55/209,749.28 - Step 6: Final answer
x = 157,672.48
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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.