Finding the Fourth Proportional to 221,207.73, 305,292.62 and 125,728.78
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Solution
The fourth proportional to 221,207.73, 305,292.62 and 125,728.78 is: 173,520.46
Step by Step Solution
- Step 1: Write the proportion equation
221,207.73 : 305,292.62 = 125,728.78 : x - Step 2: Convert to fraction form
221,207.73/305,292.62 = 125,728.78/x - Step 3: Cross multiply
221,207.73x = 305,292.62 × 125,728.78 - Step 4: Simplify right side
221,207.73x = 38,384,066,500.50 - Step 5: Solve for x
x = 38,384,066,500.50/221,207.73 - Step 6: Final answer
x = 173,520.46
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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.