Finding the Fourth Proportional to 252,121.05, 347,922.39 and 137,400.63
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Solution
The fourth proportional to 252,121.05, 347,922.39 and 137,400.63 is: 189,610.33
Step by Step Solution
- Step 1: Write the proportion equation
252,121.05 : 347,922.39 = 137,400.63 : x - Step 2: Convert to fraction form
252,121.05/347,922.39 = 137,400.63/x - Step 3: Cross multiply
252,121.05x = 347,922.39 × 137,400.63 - Step 4: Simplify right side
252,121.05x = 47,804,755,577.11 - Step 5: Solve for x
x = 47,804,755,577.11/252,121.05 - Step 6: Final answer
x = 189,610.33
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1.5x scale
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.