Finding the Fourth Proportional to 209,266.79, 312,478.89 and 203,591.69
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Solution
The fourth proportional to 209,266.79, 312,478.89 and 203,591.69 is: 304,004.78
Step by Step Solution
- Step 1: Write the proportion equation
209,266.79 : 312,478.89 = 203,591.69 : x - Step 2: Convert to fraction form
209,266.79/312,478.89 = 203,591.69/x - Step 3: Cross multiply
209,266.79x = 312,478.89 × 203,591.69 - Step 4: Simplify right side
209,266.79x = 63,618,103,742.03 - Step 5: Solve for x
x = 63,618,103,742.03/209,266.79 - Step 6: Final answer
x = 304,004.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.