Finding the Fourth Proportional to 201,687.40, 302,531.10 and 68,717.80
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Solution
The fourth proportional to 201,687.40, 302,531.10 and 68,717.80 is: 103,076.70
Step by Step Solution
- Step 1: Write the proportion equation
201,687.40 : 302,531.10 = 68,717.80 : x - Step 2: Convert to fraction form
201,687.40/302,531.10 = 68,717.80/x - Step 3: Cross multiply
201,687.40x = 302,531.10 × 68,717.80 - Step 4: Simplify right side
201,687.40x = 20,789,271,623.58 - Step 5: Solve for x
x = 20,789,271,623.58/201,687.40 - Step 6: Final answer
x = 103,076.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.