Finding the Fourth Proportional to 285,701.26, 394,265.54 and 156,638.19
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Solution
The fourth proportional to 285,701.26, 394,265.54 and 156,638.19 is: 216,159.50
Step by Step Solution
- Step 1: Write the proportion equation
285,701.26 : 394,265.54 = 156,638.19 : x - Step 2: Convert to fraction form
285,701.26/394,265.54 = 156,638.19/x - Step 3: Cross multiply
285,701.26x = 394,265.54 × 156,638.19 - Step 4: Simplify right side
285,701.26x = 61,757,040,564.97 - Step 5: Solve for x
x = 61,757,040,564.97/285,701.26 - Step 6: Final answer
x = 216,159.50
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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.