Finding the Fourth Proportional to 222,019.66, 306,380.91 and 121,415.50
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Solution
The fourth proportional to 222,019.66, 306,380.91 and 121,415.50 is: 167,549.99
Step by Step Solution
- Step 1: Write the proportion equation
222,019.66 : 306,380.91 = 121,415.50 : x - Step 2: Convert to fraction form
222,019.66/306,380.91 = 121,415.50/x - Step 3: Cross multiply
222,019.66x = 306,380.91 × 121,415.50 - Step 4: Simplify right side
222,019.66x = 37,199,391,378.11 - Step 5: Solve for x
x = 37,199,391,378.11/222,019.66 - Step 6: Final answer
x = 167,549.99
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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.