Finding the Fourth Proportional to 221,229.20, 305,314.44 and 125,765.84
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Solution
The fourth proportional to 221,229.20, 305,314.44 and 125,765.84 is: 173,567.17
Step by Step Solution
- Step 1: Write the proportion equation
221,229.20 : 305,314.44 = 125,765.84 : x - Step 2: Convert to fraction form
221,229.20/305,314.44 = 125,765.84/x - Step 3: Cross multiply
221,229.20x = 305,314.44 × 125,765.84 - Step 4: Simplify right side
221,229.20x = 38,398,127,010.73 - Step 5: Solve for x
x = 38,398,127,010.73/221,229.20 - Step 6: Final answer
x = 173,567.17
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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.