Finding the Fourth Proportional to 251,530.24, 347,120.96 and 138,361.60
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Solution
The fourth proportional to 251,530.24, 347,120.96 and 138,361.60 is: 190,944.08
Step by Step Solution
- Step 1: Write the proportion equation
251,530.24 : 347,120.96 = 138,361.60 : x - Step 2: Convert to fraction form
251,530.24/347,120.96 = 138,361.60/x - Step 3: Cross multiply
251,530.24x = 347,120.96 × 138,361.60 - Step 4: Simplify right side
251,530.24x = 48,028,211,419.14 - Step 5: Solve for x
x = 48,028,211,419.14/251,530.24 - Step 6: Final answer
x = 190,944.08
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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.