Finding the Fourth Proportional to 221,226.92, 305,283.35 and 135,330.11
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Solution
The fourth proportional to 221,226.92, 305,283.35 and 135,330.11 is: 186,749.55
Step by Step Solution
- Step 1: Write the proportion equation
221,226.92 : 305,283.35 = 135,330.11 : x - Step 2: Convert to fraction form
221,226.92/305,283.35 = 135,330.11/x - Step 3: Cross multiply
221,226.92x = 305,283.35 × 135,330.11 - Step 4: Simplify right side
221,226.92x = 41,314,027,133.60 - Step 5: Solve for x
x = 41,314,027,133.60/221,226.92 - Step 6: Final answer
x = 186,749.55
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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.