Finding the Fourth Proportional to 209,471.40, 314,207.10 and 162,757.80
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Solution
The fourth proportional to 209,471.40, 314,207.10 and 162,757.80 is: 244,136.70
Step by Step Solution
- Step 1: Write the proportion equation
209,471.40 : 314,207.10 = 162,757.80 : x - Step 2: Convert to fraction form
209,471.40/314,207.10 = 162,757.80/x - Step 3: Cross multiply
209,471.40x = 314,207.10 × 162,757.80 - Step 4: Simplify right side
209,471.40x = 51,139,656,340.38 - Step 5: Solve for x
x = 51,139,656,340.38/209,471.40 - Step 6: Final answer
x = 244,136.70
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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.