Finding the Fourth Proportional to 201,917.40, 302,876.10 and 68,947.80
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Solution
The fourth proportional to 201,917.40, 302,876.10 and 68,947.80 is: 103,421.70
Step by Step Solution
- Step 1: Write the proportion equation
201,917.40 : 302,876.10 = 68,947.80 : x - Step 2: Convert to fraction form
201,917.40/302,876.10 = 68,947.80/x - Step 3: Cross multiply
201,917.40x = 302,876.10 × 68,947.80 - Step 4: Simplify right side
201,917.40x = 20,882,640,767.58 - Step 5: Solve for x
x = 20,882,640,767.58/201,917.40 - Step 6: Final answer
x = 103,421.70
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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.