Finding the Fourth Proportional to 209,197.58, 288,831.68 and 160,713.15
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Solution
The fourth proportional to 209,197.58, 288,831.68 and 160,713.15 is: 221,890.95
Step by Step Solution
- Step 1: Write the proportion equation
209,197.58 : 288,831.68 = 160,713.15 : x - Step 2: Convert to fraction form
209,197.58/288,831.68 = 160,713.15/x - Step 3: Cross multiply
209,197.58x = 288,831.68 × 160,713.15 - Step 4: Simplify right side
209,197.58x = 46,419,047,828.58 - Step 5: Solve for x
x = 46,419,047,828.58/209,197.58 - Step 6: Final answer
x = 221,890.95
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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.