Finding the Fourth Proportional to 320,793.82, 442,690.11 and 177,550.79
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Solution
The fourth proportional to 320,793.82, 442,690.11 and 177,550.79 is: 245,017.12
Step by Step Solution
- Step 1: Write the proportion equation
320,793.82 : 442,690.11 = 177,550.79 : x - Step 2: Convert to fraction form
320,793.82/442,690.11 = 177,550.79/x - Step 3: Cross multiply
320,793.82x = 442,690.11 × 177,550.79 - Step 4: Simplify right side
320,793.82x = 78,599,976,542.24 - Step 5: Solve for x
x = 78,599,976,542.24/320,793.82 - Step 6: Final answer
x = 245,017.12
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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.