Finding the Fourth Proportional to 253,706.45, 350,115.05 and 138,989.26
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Solution
The fourth proportional to 253,706.45, 350,115.05 and 138,989.26 is: 191,805.26
Step by Step Solution
- Step 1: Write the proportion equation
253,706.45 : 350,115.05 = 138,989.26 : x - Step 2: Convert to fraction form
253,706.45/350,115.05 = 138,989.26/x - Step 3: Cross multiply
253,706.45x = 350,115.05 × 138,989.26 - Step 4: Simplify right side
253,706.45x = 48,662,230,144.13 - Step 5: Solve for x
x = 48,662,230,144.13/253,706.45 - Step 6: Final answer
x = 191,805.26
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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.