Finding the Fourth Proportional to 194,477.20, 291,132.60 and 115,550.80
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Solution
The fourth proportional to 194,477.20, 291,132.60 and 115,550.80 is: 172,979.69
Step by Step Solution
- Step 1: Write the proportion equation
194,477.20 : 291,132.60 = 115,550.80 : x - Step 2: Convert to fraction form
194,477.20/291,132.60 = 115,550.80/x - Step 3: Cross multiply
194,477.20x = 291,132.60 × 115,550.80 - Step 4: Simplify right side
194,477.20x = 33,640,604,836.08 - Step 5: Solve for x
x = 33,640,604,836.08/194,477.20 - Step 6: Final answer
x = 172,979.69
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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.