Finding the Fourth Proportional to 245,906.12, 339,343.82 and 138,473.84
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Solution
The fourth proportional to 245,906.12, 339,343.82 and 138,473.84 is: 191,090.17
Step by Step Solution
- Step 1: Write the proportion equation
245,906.12 : 339,343.82 = 138,473.84 : x - Step 2: Convert to fraction form
245,906.12/339,343.82 = 138,473.84/x - Step 3: Cross multiply
245,906.12x = 339,343.82 × 138,473.84 - Step 4: Simplify right side
245,906.12x = 46,990,241,991.66 - Step 5: Solve for x
x = 46,990,241,991.66/245,906.12 - Step 6: Final answer
x = 191,090.17
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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.