Finding the Fourth Proportional to 222,170.32, 306,602.76 and 121,577.68
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Solution
The fourth proportional to 222,170.32, 306,602.76 and 121,577.68 is: 167,781.42
Step by Step Solution
- Step 1: Write the proportion equation
222,170.32 : 306,602.76 = 121,577.68 : x - Step 2: Convert to fraction form
222,170.32/306,602.76 = 121,577.68/x - Step 3: Cross multiply
222,170.32x = 306,602.76 × 121,577.68 - Step 4: Simplify right side
222,170.32x = 37,276,052,242.40 - Step 5: Solve for x
x = 37,276,052,242.40/222,170.32 - Step 6: Final answer
x = 167,781.42
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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.