Finding the Fourth Proportional to 209,252.80, 313,879.20 and 146,267.20
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Solution
The fourth proportional to 209,252.80, 313,879.20 and 146,267.20 is: 219,400.80
Step by Step Solution
- Step 1: Write the proportion equation
209,252.80 : 313,879.20 = 146,267.20 : x - Step 2: Convert to fraction form
209,252.80/313,879.20 = 146,267.20/x - Step 3: Cross multiply
209,252.80x = 313,879.20 × 146,267.20 - Step 4: Simplify right side
209,252.80x = 45,910,231,722.24 - Step 5: Solve for x
x = 45,910,231,722.24/209,252.80 - Step 6: Final answer
x = 219,400.80
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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.