Finding the Fourth Proportional to 211,799.20, 317,698.80 and 177,584.80
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Solution
The fourth proportional to 211,799.20, 317,698.80 and 177,584.80 is: 266,377.20
Step by Step Solution
- Step 1: Write the proportion equation
211,799.20 : 317,698.80 = 177,584.80 : x - Step 2: Convert to fraction form
211,799.20/317,698.80 = 177,584.80/x - Step 3: Cross multiply
211,799.20x = 317,698.80 × 177,584.80 - Step 4: Simplify right side
211,799.20x = 56,418,477,858.24 - Step 5: Solve for x
x = 56,418,477,858.24/211,799.20 - Step 6: Final answer
x = 266,377.20
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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.