Finding the Fourth Proportional to 186,445.80, 279,668.70 and 81,469.80
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Solution
The fourth proportional to 186,445.80, 279,668.70 and 81,469.80 is: 122,204.70
Step by Step Solution
- Step 1: Write the proportion equation
186,445.80 : 279,668.70 = 81,469.80 : x - Step 2: Convert to fraction form
186,445.80/279,668.70 = 81,469.80/x - Step 3: Cross multiply
186,445.80x = 279,668.70 × 81,469.80 - Step 4: Simplify right side
186,445.80x = 22,784,553,055.26 - Step 5: Solve for x
x = 22,784,553,055.26/186,445.80 - Step 6: Final answer
x = 122,204.70
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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.