Finding the Fourth Proportional to 222,300.75, 306,775.05 and 121,698.75
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Solution
The fourth proportional to 222,300.75, 306,775.05 and 121,698.75 is: 167,944.28
Step by Step Solution
- Step 1: Write the proportion equation
222,300.75 : 306,775.05 = 121,698.75 : x - Step 2: Convert to fraction form
222,300.75/306,775.05 = 121,698.75/x - Step 3: Cross multiply
222,300.75x = 306,775.05 × 121,698.75 - Step 4: Simplify right side
222,300.75x = 37,334,140,116.19 - Step 5: Solve for x
x = 37,334,140,116.19/222,300.75 - Step 6: Final answer
x = 167,944.28
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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.