Finding the Fourth Proportional to 190,392.14, 285,276.66 and 115,284.80
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Solution
The fourth proportional to 190,392.14, 285,276.66 and 115,284.80 is: 172,738.55
Step by Step Solution
- Step 1: Write the proportion equation
190,392.14 : 285,276.66 = 115,284.80 : x - Step 2: Convert to fraction form
190,392.14/285,276.66 = 115,284.80/x - Step 3: Cross multiply
190,392.14x = 285,276.66 × 115,284.80 - Step 4: Simplify right side
190,392.14x = 32,888,062,692.77 - Step 5: Solve for x
x = 32,888,062,692.77/190,392.14 - Step 6: Final answer
x = 172,738.55
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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.