Finding the Fourth Proportional to 211,941.20, 317,622.36 and 106,831.28
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Solution
The fourth proportional to 211,941.20, 317,622.36 and 106,831.28 is: 160,101.02
Step by Step Solution
- Step 1: Write the proportion equation
211,941.20 : 317,622.36 = 106,831.28 : x - Step 2: Convert to fraction form
211,941.20/317,622.36 = 106,831.28/x - Step 3: Cross multiply
211,941.20x = 317,622.36 × 106,831.28 - Step 4: Simplify right side
211,941.20x = 33,932,003,275.42 - Step 5: Solve for x
x = 33,932,003,275.42/211,941.20 - Step 6: Final answer
x = 160,101.02
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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.