Finding the Fourth Proportional to 253,966.97, 350,478.37 and 139,256.09
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Solution
The fourth proportional to 253,966.97, 350,478.37 and 139,256.09 is: 192,175.56
Step by Step Solution
- Step 1: Write the proportion equation
253,966.97 : 350,478.37 = 139,256.09 : x - Step 2: Convert to fraction form
253,966.97/350,478.37 = 139,256.09/x - Step 3: Cross multiply
253,966.97x = 350,478.37 × 139,256.09 - Step 4: Simplify right side
253,966.97x = 48,806,245,794.37 - Step 5: Solve for x
x = 48,806,245,794.37/253,966.97 - Step 6: Final answer
x = 192,175.56
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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.