Finding the Fourth Proportional to 192,164.40, 288,246.60 and 129,178.80
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Solution
The fourth proportional to 192,164.40, 288,246.60 and 129,178.80 is: 193,768.20
Step by Step Solution
- Step 1: Write the proportion equation
192,164.40 : 288,246.60 = 129,178.80 : x - Step 2: Convert to fraction form
192,164.40/288,246.60 = 129,178.80/x - Step 3: Cross multiply
192,164.40x = 288,246.60 × 129,178.80 - Step 4: Simplify right side
192,164.40x = 37,235,349,892.08 - Step 5: Solve for x
x = 37,235,349,892.08/192,164.40 - Step 6: Final answer
x = 193,768.20
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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.