Finding the Fourth Proportional to 222,405.44, 306,926.88 and 121,808.96
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Solution
The fourth proportional to 222,405.44, 306,926.88 and 121,808.96 is: 168,100.40
Step by Step Solution
- Step 1: Write the proportion equation
222,405.44 : 306,926.88 = 121,808.96 : x - Step 2: Convert to fraction form
222,405.44/306,926.88 = 121,808.96/x - Step 3: Cross multiply
222,405.44x = 306,926.88 × 121,808.96 - Step 4: Simplify right side
222,405.44x = 37,386,444,048.84 - Step 5: Solve for x
x = 37,386,444,048.84/222,405.44 - Step 6: Final answer
x = 168,100.40
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1.5x scale
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.