Finding the Fourth Proportional to 221,486.40, 305,680.44 and 125,974.65
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Solution
The fourth proportional to 221,486.40, 305,680.44 and 125,974.65 is: 173,861.63
Step by Step Solution
- Step 1: Write the proportion equation
221,486.40 : 305,680.44 = 125,974.65 : x - Step 2: Convert to fraction form
221,486.40/305,680.44 = 125,974.65/x - Step 3: Cross multiply
221,486.40x = 305,680.44 × 125,974.65 - Step 4: Simplify right side
221,486.40x = 38,507,986,440.85 - Step 5: Solve for x
x = 38,507,986,440.85/221,486.40 - Step 6: Final answer
x = 173,861.63
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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.