Finding the Fourth Proportional to 222,453.19, 306,998.84 and 136,422.07
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Solution
The fourth proportional to 222,453.19, 306,998.84 and 136,422.07 is: 188,270.69
Step by Step Solution
- Step 1: Write the proportion equation
222,453.19 : 306,998.84 = 136,422.07 : x - Step 2: Convert to fraction form
222,453.19/306,998.84 = 136,422.07/x - Step 3: Cross multiply
222,453.19x = 306,998.84 × 136,422.07 - Step 4: Simplify right side
222,453.19x = 41,881,415,023.29 - Step 5: Solve for x
x = 41,881,415,023.29/222,453.19 - Step 6: Final answer
x = 188,270.69
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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.