Finding the Fourth Proportional to 201,563.32, 278,168.87 and 115,536.62
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Solution
The fourth proportional to 201,563.32, 278,168.87 and 115,536.62 is: 159,447.12
Step by Step Solution
- Step 1: Write the proportion equation
201,563.32 : 278,168.87 = 115,536.62 : x - Step 2: Convert to fraction form
201,563.32/278,168.87 = 115,536.62/x - Step 3: Cross multiply
201,563.32x = 278,168.87 × 115,536.62 - Step 4: Simplify right side
201,563.32x = 32,138,691,029.02 - Step 5: Solve for x
x = 32,138,691,029.02/201,563.32 - Step 6: Final answer
x = 159,447.12
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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.