Finding the Fourth Proportional to 221,195.70, 305,261.73 and 120,600.18
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Solution
The fourth proportional to 221,195.70, 305,261.73 and 120,600.18 is: 166,434.61
Step by Step Solution
- Step 1: Write the proportion equation
221,195.70 : 305,261.73 = 120,600.18 : x - Step 2: Convert to fraction form
221,195.70/305,261.73 = 120,600.18/x - Step 3: Cross multiply
221,195.70x = 305,261.73 × 120,600.18 - Step 4: Simplify right side
221,195.70x = 36,814,619,585.11 - Step 5: Solve for x
x = 36,814,619,585.11/221,195.70 - Step 6: Final answer
x = 166,434.61
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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.