Finding the Fourth Proportional to 201,117.20, 300,898.20 and 131,133.20
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Solution
The fourth proportional to 201,117.20, 300,898.20 and 131,133.20 is: 196,192.79
Step by Step Solution
- Step 1: Write the proportion equation
201,117.20 : 300,898.20 = 131,133.20 : x - Step 2: Convert to fraction form
201,117.20/300,898.20 = 131,133.20/x - Step 3: Cross multiply
201,117.20x = 300,898.20 × 131,133.20 - Step 4: Simplify right side
201,117.20x = 39,457,743,840.24 - Step 5: Solve for x
x = 39,457,743,840.24/201,117.20 - Step 6: Final answer
x = 196,192.79
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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.