Finding the Fourth Proportional to 192,305.40, 288,458.10 and 171,415.80
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Solution
The fourth proportional to 192,305.40, 288,458.10 and 171,415.80 is: 257,123.70
Step by Step Solution
- Step 1: Write the proportion equation
192,305.40 : 288,458.10 = 171,415.80 : x - Step 2: Convert to fraction form
192,305.40/288,458.10 = 171,415.80/x - Step 3: Cross multiply
192,305.40x = 288,458.10 × 171,415.80 - Step 4: Simplify right side
192,305.40x = 49,446,275,977.98 - Step 5: Solve for x
x = 49,446,275,977.98/192,305.40 - Step 6: Final answer
x = 257,123.70
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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.