Finding the Fourth Proportional to 209,261.99, 288,920.62 and 160,777.55
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Solution
The fourth proportional to 209,261.99, 288,920.62 and 160,777.55 is: 221,979.87
Step by Step Solution
- Step 1: Write the proportion equation
209,261.99 : 288,920.62 = 160,777.55 : x - Step 2: Convert to fraction form
209,261.99/288,920.62 = 160,777.55/x - Step 3: Cross multiply
209,261.99x = 288,920.62 × 160,777.55 - Step 4: Simplify right side
209,261.99x = 46,451,950,351.35 - Step 5: Solve for x
x = 46,451,950,351.35/209,261.99 - Step 6: Final answer
x = 221,979.87
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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.