Finding the Fourth Proportional to 201,747.80, 278,406.42 and 115,721.21
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Solution
The fourth proportional to 201,747.80, 278,406.42 and 115,721.21 is: 159,692.09
Step by Step Solution
- Step 1: Write the proportion equation
201,747.80 : 278,406.42 = 115,721.21 : x - Step 2: Convert to fraction form
201,747.80/278,406.42 = 115,721.21/x - Step 3: Cross multiply
201,747.80x = 278,406.42 × 115,721.21 - Step 4: Simplify right side
201,747.80x = 32,217,526,402.14 - Step 5: Solve for x
x = 32,217,526,402.14/201,747.80 - Step 6: Final answer
x = 159,692.09
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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.