Finding the Fourth Proportional to 222,252.75, 306,710.01 and 121,650.75
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Solution
The fourth proportional to 222,252.75, 306,710.01 and 121,650.75 is: 167,878.70
Step by Step Solution
- Step 1: Write the proportion equation
222,252.75 : 306,710.01 = 121,650.75 : x - Step 2: Convert to fraction form
222,252.75/306,710.01 = 121,650.75/x - Step 3: Cross multiply
222,252.75x = 306,710.01 × 121,650.75 - Step 4: Simplify right side
222,252.75x = 37,311,502,749.01 - Step 5: Solve for x
x = 37,311,502,749.01/222,252.75 - Step 6: Final answer
x = 167,878.70
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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.