Finding the Fourth Proportional to 201,670.75, 278,300.73 and 111,025.99
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Solution
The fourth proportional to 201,670.75, 278,300.73 and 111,025.99 is: 153,213.17
Step by Step Solution
- Step 1: Write the proportion equation
201,670.75 : 278,300.73 = 111,025.99 : x - Step 2: Convert to fraction form
201,670.75/278,300.73 = 111,025.99/x - Step 3: Cross multiply
201,670.75x = 278,300.73 × 111,025.99 - Step 4: Simplify right side
201,670.75x = 30,898,614,065.97 - Step 5: Solve for x
x = 30,898,614,065.97/201,670.75 - Step 6: Final answer
x = 153,213.17
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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.