Finding the Fourth Proportional to 201,838.13, 278,536.62 and 112,414.13
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Solution
The fourth proportional to 201,838.13, 278,536.62 and 112,414.13 is: 155,131.50
Step by Step Solution
- Step 1: Write the proportion equation
201,838.13 : 278,536.62 = 112,414.13 : x - Step 2: Convert to fraction form
201,838.13/278,536.62 = 112,414.13/x - Step 3: Cross multiply
201,838.13x = 278,536.62 × 112,414.13 - Step 4: Simplify right side
201,838.13x = 31,311,450,417.76 - Step 5: Solve for x
x = 31,311,450,417.76/201,838.13 - Step 6: Final answer
x = 155,131.50
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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.