Finding the Fourth Proportional to 201,965.56, 278,713.58 and 117,132.92
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Solution
The fourth proportional to 201,965.56, 278,713.58 and 117,132.92 is: 161,644.07
Step by Step Solution
- Step 1: Write the proportion equation
201,965.56 : 278,713.58 = 117,132.92 : x - Step 2: Convert to fraction form
201,965.56/278,713.58 = 117,132.92/x - Step 3: Cross multiply
201,965.56x = 278,713.58 × 117,132.92 - Step 4: Simplify right side
201,965.56x = 32,646,535,469.05 - Step 5: Solve for x
x = 32,646,535,469.05/201,965.56 - Step 6: Final answer
x = 161,644.07
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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.