Finding the Fourth Proportional to 251,396.14, 346,917.81 and 138,218.02
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Solution
The fourth proportional to 251,396.14, 346,917.81 and 138,218.02 is: 190,735.99
Step by Step Solution
- Step 1: Write the proportion equation
251,396.14 : 346,917.81 = 138,218.02 : x - Step 2: Convert to fraction form
251,396.14/346,917.81 = 138,218.02/x - Step 3: Cross multiply
251,396.14x = 346,917.81 × 138,218.02 - Step 4: Simplify right side
251,396.14x = 47,950,292,800.94 - Step 5: Solve for x
x = 47,950,292,800.94/251,396.14 - Step 6: Final answer
x = 190,735.99
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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.