Finding the Fourth Proportional to 222,280.12, 306,737.58 and 121,678.12
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Solution
The fourth proportional to 222,280.12, 306,737.58 and 121,678.12 is: 167,910.89
Step by Step Solution
- Step 1: Write the proportion equation
222,280.12 : 306,737.58 = 121,678.12 : x - Step 2: Convert to fraction form
222,280.12/306,737.58 = 121,678.12/x - Step 3: Cross multiply
222,280.12x = 306,737.58 × 121,678.12 - Step 4: Simplify right side
222,280.12x = 37,323,252,067.75 - Step 5: Solve for x
x = 37,323,252,067.75/222,280.12 - Step 6: Final answer
x = 167,910.89
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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.