Finding the Fourth Proportional to 202,987.44, 280,120.59 and 112,343.58
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Solution
The fourth proportional to 202,987.44, 280,120.59 and 112,343.58 is: 155,032.99
Step by Step Solution
- Step 1: Write the proportion equation
202,987.44 : 280,120.59 = 112,343.58 : x - Step 2: Convert to fraction form
202,987.44/280,120.59 = 112,343.58/x - Step 3: Cross multiply
202,987.44x = 280,120.59 × 112,343.58 - Step 4: Simplify right side
202,987.44x = 31,469,749,912.31 - Step 5: Solve for x
x = 31,469,749,912.31/202,987.44 - Step 6: Final answer
x = 155,032.99
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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.