Finding the Fourth Proportional to 289,831.80, 434,747.70 and 132,367.80
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Solution
The fourth proportional to 289,831.80, 434,747.70 and 132,367.80 is: 198,551.70
Step by Step Solution
- Step 1: Write the proportion equation
289,831.80 : 434,747.70 = 132,367.80 : x - Step 2: Convert to fraction form
289,831.80/434,747.70 = 132,367.80/x - Step 3: Cross multiply
289,831.80x = 434,747.70 × 132,367.80 - Step 4: Simplify right side
289,831.80x = 57,546,596,604.06 - Step 5: Solve for x
x = 57,546,596,604.06/289,831.80 - Step 6: Final answer
x = 198,551.70
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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.