Finding the Fourth Proportional to 201,958.48, 278,703.84 and 117,125.92
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Solution
The fourth proportional to 201,958.48, 278,703.84 and 117,125.92 is: 161,634.43
Step by Step Solution
- Step 1: Write the proportion equation
201,958.48 : 278,703.84 = 117,125.92 : x - Step 2: Convert to fraction form
201,958.48/278,703.84 = 117,125.92/x - Step 3: Cross multiply
201,958.48x = 278,703.84 × 117,125.92 - Step 4: Simplify right side
201,958.48x = 32,643,443,667.53 - Step 5: Solve for x
x = 32,643,443,667.53/201,958.48 - Step 6: Final answer
x = 161,634.43
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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.