Finding the Fourth Proportional to 436,831.80, 655,247.70 and 141,343.80
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Solution
The fourth proportional to 436,831.80, 655,247.70 and 141,343.80 is: 212,015.70
Step by Step Solution
- Step 1: Write the proportion equation
436,831.80 : 655,247.70 = 141,343.80 : x - Step 2: Convert to fraction form
436,831.80/655,247.70 = 141,343.80/x - Step 3: Cross multiply
436,831.80x = 655,247.70 × 141,343.80 - Step 4: Simplify right side
436,831.80x = 92,615,199,859.26 - Step 5: Solve for x
x = 92,615,199,859.26/436,831.80 - Step 6: Final answer
x = 212,015.70
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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.