Finding the Fourth Proportional to 201,896.84, 278,614.14 and 117,021.80
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Solution
The fourth proportional to 201,896.84, 278,614.14 and 117,021.80 is: 161,488.06
Step by Step Solution
- Step 1: Write the proportion equation
201,896.84 : 278,614.14 = 117,021.80 : x - Step 2: Convert to fraction form
201,896.84/278,614.14 = 117,021.80/x - Step 3: Cross multiply
201,896.84x = 278,614.14 × 117,021.80 - Step 4: Simplify right side
201,896.84x = 32,603,928,168.25 - Step 5: Solve for x
x = 32,603,928,168.25/201,896.84 - Step 6: Final answer
x = 161,488.06
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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.