Finding the Fourth Proportional to 305,053.44, 420,831.36 and 191,938.56
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Solution
The fourth proportional to 305,053.44, 420,831.36 and 191,938.56 is: 264,785.62
Step by Step Solution
- Step 1: Write the proportion equation
305,053.44 : 420,831.36 = 191,938.56 : x - Step 2: Convert to fraction form
305,053.44/420,831.36 = 191,938.56/x - Step 3: Cross multiply
305,053.44x = 420,831.36 × 191,938.56 - Step 4: Simplify right side
305,053.44x = 80,773,765,241.24 - Step 5: Solve for x
x = 80,773,765,241.24/305,053.44 - Step 6: Final answer
x = 264,785.62
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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.