Finding the Fourth Proportional to 201,315.20, 301,195.20 and 131,331.20
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Solution
The fourth proportional to 201,315.20, 301,195.20 and 131,331.20 is: 196,489.52
Step by Step Solution
- Step 1: Write the proportion equation
201,315.20 : 301,195.20 = 131,331.20 : x - Step 2: Convert to fraction form
201,315.20/301,195.20 = 131,331.20/x - Step 3: Cross multiply
201,315.20x = 301,195.20 × 131,331.20 - Step 4: Simplify right side
201,315.20x = 39,556,327,050.24 - Step 5: Solve for x
x = 39,556,327,050.24/201,315.20 - Step 6: Final answer
x = 196,489.52
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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.