Finding the Fourth Proportional to 222,351.12, 306,841.50 and 121,749.12
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Solution
The fourth proportional to 222,351.12, 306,841.50 and 121,749.12 is: 168,012.12
Step by Step Solution
- Step 1: Write the proportion equation
222,351.12 : 306,841.50 = 121,749.12 : x - Step 2: Convert to fraction form
222,351.12/306,841.50 = 121,749.12/x - Step 3: Cross multiply
222,351.12x = 306,841.50 × 121,749.12 - Step 4: Simplify right side
222,351.12x = 37,357,682,604.48 - Step 5: Solve for x
x = 37,357,682,604.48/222,351.12 - Step 6: Final answer
x = 168,012.12
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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.