Finding the Fourth Proportional to 217,192.80, 325,846.80 and 76,936.80
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Solution
The fourth proportional to 217,192.80, 325,846.80 and 76,936.80 is: 115,425.60
Step by Step Solution
- Step 1: Write the proportion equation
217,192.80 : 325,846.80 = 76,936.80 : x - Step 2: Convert to fraction form
217,192.80/325,846.80 = 76,936.80/x - Step 3: Cross multiply
217,192.80x = 325,846.80 × 76,936.80 - Step 4: Simplify right side
217,192.80x = 25,069,610,082.24 - Step 5: Solve for x
x = 25,069,610,082.24/217,192.80 - Step 6: Final answer
x = 115,425.60
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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.