Finding the Fourth Proportional to 209,891.70, 314,837.55 and 201,143.70
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Solution
The fourth proportional to 209,891.70, 314,837.55 and 201,143.70 is: 301,715.55
Step by Step Solution
- Step 1: Write the proportion equation
209,891.70 : 314,837.55 = 201,143.70 : x - Step 2: Convert to fraction form
209,891.70/314,837.55 = 201,143.70/x - Step 3: Cross multiply
209,891.70x = 314,837.55 × 201,143.70 - Step 4: Simplify right side
209,891.70x = 63,327,589,705.94 - Step 5: Solve for x
x = 63,327,589,705.94/209,891.70 - Step 6: Final answer
x = 301,715.55
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1.5x scale
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.