Finding the Fourth Proportional to 202,178.10, 303,485.85 and 127,382.70
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Solution
The fourth proportional to 202,178.10, 303,485.85 and 127,382.70 is: 191,211.84
Step by Step Solution
- Step 1: Write the proportion equation
202,178.10 : 303,485.85 = 127,382.70 : x - Step 2: Convert to fraction form
202,178.10/303,485.85 = 127,382.70/x - Step 3: Cross multiply
202,178.10x = 303,485.85 × 127,382.70 - Step 4: Simplify right side
202,178.10x = 38,658,846,984.80 - Step 5: Solve for x
x = 38,658,846,984.80/202,178.10 - Step 6: Final answer
x = 191,211.84
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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.