Finding the Fourth Proportional to 221,112.45, 305,135.24 and 125,619.30
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Solution
The fourth proportional to 221,112.45, 305,135.24 and 125,619.30 is: 173,354.66
Step by Step Solution
- Step 1: Write the proportion equation
221,112.45 : 305,135.24 = 125,619.30 : x - Step 2: Convert to fraction form
221,112.45/305,135.24 = 125,619.30/x - Step 3: Cross multiply
221,112.45x = 305,135.24 × 125,619.30 - Step 4: Simplify right side
221,112.45x = 38,330,874,626.04 - Step 5: Solve for x
x = 38,330,874,626.04/221,112.45 - Step 6: Final answer
x = 173,354.66
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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.