Finding the Fourth Proportional to 201,743.20, 301,837.20 and 131,759.20
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Solution
The fourth proportional to 201,743.20, 301,837.20 and 131,759.20 is: 197,130.95
Step by Step Solution
- Step 1: Write the proportion equation
201,743.20 : 301,837.20 = 131,759.20 : x - Step 2: Convert to fraction form
201,743.20/301,837.20 = 131,759.20/x - Step 3: Cross multiply
201,743.20x = 301,837.20 × 131,759.20 - Step 4: Simplify right side
201,743.20x = 39,769,828,002.24 - Step 5: Solve for x
x = 39,769,828,002.24/201,743.20 - Step 6: Final answer
x = 197,130.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.