Finding the Fourth Proportional to 222,454.94, 306,986.24 and 120,478.05
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Solution
The fourth proportional to 222,454.94, 306,986.24 and 120,478.05 is: 166,258.86
Step by Step Solution
- Step 1: Write the proportion equation
222,454.94 : 306,986.24 = 120,478.05 : x - Step 2: Convert to fraction form
222,454.94/306,986.24 = 120,478.05/x - Step 3: Cross multiply
222,454.94x = 306,986.24 × 120,478.05 - Step 4: Simplify right side
222,454.94x = 36,985,103,873.23 - Step 5: Solve for x
x = 36,985,103,873.23/222,454.94 - Step 6: Final answer
x = 166,258.86
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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.