Finding the Fourth Proportional to 209,891.08, 289,655.81 and 114,403.96
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Solution
The fourth proportional to 209,891.08, 289,655.81 and 114,403.96 is: 157,880.80
Step by Step Solution
- Step 1: Write the proportion equation
209,891.08 : 289,655.81 = 114,403.96 : x - Step 2: Convert to fraction form
209,891.08/289,655.81 = 114,403.96/x - Step 3: Cross multiply
209,891.08x = 289,655.81 × 114,403.96 - Step 4: Simplify right side
209,891.08x = 33,137,771,701.01 - Step 5: Solve for x
x = 33,137,771,701.01/209,891.08 - Step 6: Final answer
x = 157,880.80
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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.