Finding the Fourth Proportional to 394,154.68, 591,078.64 and 127,850.80
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Solution
The fourth proportional to 394,154.68, 591,078.64 and 127,850.80 is: 191,726.45
Step by Step Solution
- Step 1: Write the proportion equation
394,154.68 : 591,078.64 = 127,850.80 : x - Step 2: Convert to fraction form
394,154.68/591,078.64 = 127,850.80/x - Step 3: Cross multiply
394,154.68x = 591,078.64 × 127,850.80 - Step 4: Simplify right side
394,154.68x = 75,569,876,986.91 - Step 5: Solve for x
x = 75,569,876,986.91/394,154.68 - Step 6: Final answer
x = 191,726.45
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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.