Finding the Fourth Proportional to 207,716.05, 286,649.40 and 115,841.14
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Solution
The fourth proportional to 207,716.05, 286,649.40 and 115,841.14 is: 159,861.47
Step by Step Solution
- Step 1: Write the proportion equation
207,716.05 : 286,649.40 = 115,841.14 : x - Step 2: Convert to fraction form
207,716.05/286,649.40 = 115,841.14/x - Step 3: Cross multiply
207,716.05x = 286,649.40 × 115,841.14 - Step 4: Simplify right side
207,716.05x = 33,205,793,276.32 - Step 5: Solve for x
x = 33,205,793,276.32/207,716.05 - Step 6: Final answer
x = 159,861.47
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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.