Finding the Fourth Proportional to 209,411.80, 313,349.70 and 154,115.80
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Solution
The fourth proportional to 209,411.80, 313,349.70 and 154,115.80 is: 230,608.49
Step by Step Solution
- Step 1: Write the proportion equation
209,411.80 : 313,349.70 = 154,115.80 : x - Step 2: Convert to fraction form
209,411.80/313,349.70 = 154,115.80/x - Step 3: Cross multiply
209,411.80x = 313,349.70 × 154,115.80 - Step 4: Simplify right side
209,411.80x = 48,292,139,695.26 - Step 5: Solve for x
x = 48,292,139,695.26/209,411.80 - Step 6: Final answer
x = 230,608.49
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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.