Finding the Fourth Proportional to 201,101.70, 300,874.95 and 131,117.70
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Solution
The fourth proportional to 201,101.70, 300,874.95 and 131,117.70 is: 196,169.56
Step by Step Solution
- Step 1: Write the proportion equation
201,101.70 : 300,874.95 = 131,117.70 : x - Step 2: Convert to fraction form
201,101.70/300,874.95 = 131,117.70/x - Step 3: Cross multiply
201,101.70x = 300,874.95 × 131,117.70 - Step 4: Simplify right side
201,101.70x = 39,450,031,431.62 - Step 5: Solve for x
x = 39,450,031,431.62/201,101.70 - Step 6: Final answer
x = 196,169.56
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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.