Finding the Fourth Proportional to 201,135.70, 301,614.45 and 67,979.80
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Solution
The fourth proportional to 201,135.70, 301,614.45 and 67,979.80 is: 101,939.59
Step by Step Solution
- Step 1: Write the proportion equation
201,135.70 : 301,614.45 = 67,979.80 : x - Step 2: Convert to fraction form
201,135.70/301,614.45 = 67,979.80/x - Step 3: Cross multiply
201,135.70x = 301,614.45 × 67,979.80 - Step 4: Simplify right side
201,135.70x = 20,503,689,988.11 - Step 5: Solve for x
x = 20,503,689,988.11/201,135.70 - Step 6: Final answer
x = 101,939.59
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1.5x scale
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.