Finding the Fourth Proportional to 395,119.84, 545,265.42 and 213,831.84
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Solution
The fourth proportional to 395,119.84, 545,265.42 and 213,831.84 is: 295,087.96
Step by Step Solution
- Step 1: Write the proportion equation
395,119.84 : 545,265.42 = 213,831.84 : x - Step 2: Convert to fraction form
395,119.84/545,265.42 = 213,831.84/x - Step 3: Cross multiply
395,119.84x = 545,265.42 × 213,831.84 - Step 4: Simplify right side
395,119.84x = 116,595,108,046.97 - Step 5: Solve for x
x = 116,595,108,046.97/395,119.84 - Step 6: Final answer
x = 295,087.96
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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.