Finding the Fourth Proportional to 221,243.53, 305,315.97 and 120,641.53
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Solution
The fourth proportional to 221,243.53, 305,315.97 and 120,641.53 is: 166,485.26
Step by Step Solution
- Step 1: Write the proportion equation
221,243.53 : 305,315.97 = 120,641.53 : x - Step 2: Convert to fraction form
221,243.53/305,315.97 = 120,641.53/x - Step 3: Cross multiply
221,243.53x = 305,315.97 × 120,641.53 - Step 4: Simplify right side
221,243.53x = 36,833,785,754.23 - Step 5: Solve for x
x = 36,833,785,754.23/221,243.53 - Step 6: Final answer
x = 166,485.26
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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.