Finding the Fourth Proportional to 201,842.13, 278,542.14 and 112,418.13
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Solution
The fourth proportional to 201,842.13, 278,542.14 and 112,418.13 is: 155,137.02
Step by Step Solution
- Step 1: Write the proportion equation
201,842.13 : 278,542.14 = 112,418.13 : x - Step 2: Convert to fraction form
201,842.13/278,542.14 = 112,418.13/x - Step 3: Cross multiply
201,842.13x = 278,542.14 × 112,418.13 - Step 4: Simplify right side
201,842.13x = 31,313,186,505.00 - Step 5: Solve for x
x = 31,313,186,505.00/201,842.13 - Step 6: Final answer
x = 155,137.02
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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.