Finding the Fourth Proportional to 355,831.11, 491,042.79 and 194,684.31
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Solution
The fourth proportional to 355,831.11, 491,042.79 and 194,684.31 is: 268,662.08
Step by Step Solution
- Step 1: Write the proportion equation
355,831.11 : 491,042.79 = 194,684.31 : x - Step 2: Convert to fraction form
355,831.11/491,042.79 = 194,684.31/x - Step 3: Cross multiply
355,831.11x = 491,042.79 × 194,684.31 - Step 4: Simplify right side
355,831.11x = 95,598,326,751.62 - Step 5: Solve for x
x = 95,598,326,751.62/355,831.11 - Step 6: Final answer
x = 268,662.08
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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.