Finding the Fourth Proportional to 251,967.58, 347,716.20 and 138,790.06
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Solution
The fourth proportional to 251,967.58, 347,716.20 and 138,790.06 is: 191,530.80
Step by Step Solution
- Step 1: Write the proportion equation
251,967.58 : 347,716.20 = 138,790.06 : x - Step 2: Convert to fraction form
251,967.58/347,716.20 = 138,790.06/x - Step 3: Cross multiply
251,967.58x = 347,716.20 × 138,790.06 - Step 4: Simplify right side
251,967.58x = 48,259,552,260.97 - Step 5: Solve for x
x = 48,259,552,260.97/251,967.58 - Step 6: Final answer
x = 191,530.80
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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.