Finding the Fourth Proportional to 222,450.24, 306,985.32 and 121,841.76
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Solution
The fourth proportional to 222,450.24, 306,985.32 and 121,841.76 is: 168,143.81
Step by Step Solution
- Step 1: Write the proportion equation
222,450.24 : 306,985.32 = 121,841.76 : x - Step 2: Convert to fraction form
222,450.24/306,985.32 = 121,841.76/x - Step 3: Cross multiply
222,450.24x = 306,985.32 × 121,841.76 - Step 4: Simplify right side
222,450.24x = 37,403,631,682.96 - Step 5: Solve for x
x = 37,403,631,682.96/222,450.24 - Step 6: Final answer
x = 168,143.81
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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.