Finding the Fourth Proportional to 221,361.94, 305,478.03 and 125,868.63
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Solution
The fourth proportional to 221,361.94, 305,478.03 and 125,868.63 is: 173,697.89
Step by Step Solution
- Step 1: Write the proportion equation
221,361.94 : 305,478.03 = 125,868.63 : x - Step 2: Convert to fraction form
221,361.94/305,478.03 = 125,868.63/x - Step 3: Cross multiply
221,361.94x = 305,478.03 × 125,868.63 - Step 4: Simplify right side
221,361.94x = 38,450,101,131.20 - Step 5: Solve for x
x = 38,450,101,131.20/221,361.94 - Step 6: Final answer
x = 173,697.89
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1.5x scale
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.