Finding the Fourth Proportional to 263,026.36, 394,638.86 and 157,918.60
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Solution
The fourth proportional to 263,026.36, 394,638.86 and 157,918.60 is: 236,937.53
Step by Step Solution
- Step 1: Write the proportion equation
263,026.36 : 394,638.86 = 157,918.60 : x - Step 2: Convert to fraction form
263,026.36/394,638.86 = 157,918.60/x - Step 3: Cross multiply
263,026.36x = 394,638.86 × 157,918.60 - Step 4: Simplify right side
263,026.36x = 62,320,816,276.80 - Step 5: Solve for x
x = 62,320,816,276.80/263,026.36 - Step 6: Final answer
x = 236,937.53
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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.