Finding the Fourth Proportional to 201,771.48, 278,433.88 and 115,725.99
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Solution
The fourth proportional to 201,771.48, 278,433.88 and 115,725.99 is: 159,695.69
Step by Step Solution
- Step 1: Write the proportion equation
201,771.48 : 278,433.88 = 115,725.99 : x - Step 2: Convert to fraction form
201,771.48/278,433.88 = 115,725.99/x - Step 3: Cross multiply
201,771.48x = 278,433.88 × 115,725.99 - Step 4: Simplify right side
201,771.48x = 32,222,036,412.54 - Step 5: Solve for x
x = 32,222,036,412.54/201,771.48 - Step 6: Final answer
x = 159,695.69
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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.