Finding the Fourth Proportional to 222,262.21, 306,710.08 and 121,640.77
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Solution
The fourth proportional to 222,262.21, 306,710.08 and 121,640.77 is: 167,857.82
Step by Step Solution
- Step 1: Write the proportion equation
222,262.21 : 306,710.08 = 121,640.77 : x - Step 2: Convert to fraction form
222,262.21/306,710.08 = 121,640.77/x - Step 3: Cross multiply
222,262.21x = 306,710.08 × 121,640.77 - Step 4: Simplify right side
222,262.21x = 37,308,450,297.96 - Step 5: Solve for x
x = 37,308,450,297.96/222,262.21 - Step 6: Final answer
x = 167,857.82
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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.