Finding the Fourth Proportional to 209,025.08, 288,456.12 and 113,531.79
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Solution
The fourth proportional to 209,025.08, 288,456.12 and 113,531.79 is: 156,674.69
Step by Step Solution
- Step 1: Write the proportion equation
209,025.08 : 288,456.12 = 113,531.79 : x - Step 2: Convert to fraction form
209,025.08/288,456.12 = 113,531.79/x - Step 3: Cross multiply
209,025.08x = 288,456.12 × 113,531.79 - Step 4: Simplify right side
209,025.08x = 32,748,939,640.05 - Step 5: Solve for x
x = 32,748,939,640.05/209,025.08 - Step 6: Final answer
x = 156,674.69
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1.5x scale
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.