Finding the Fourth Proportional to 316,467.70, 436,725.88 and 173,236.80
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Solution
The fourth proportional to 316,467.70, 436,725.88 and 173,236.80 is: 239,067.03
Step by Step Solution
- Step 1: Write the proportion equation
316,467.70 : 436,725.88 = 173,236.80 : x - Step 2: Convert to fraction form
316,467.70/436,725.88 = 173,236.80/x - Step 3: Cross multiply
316,467.70x = 436,725.88 × 173,236.80 - Step 4: Simplify right side
316,467.70x = 75,656,993,928.38 - Step 5: Solve for x
x = 75,656,993,928.38/316,467.70 - Step 6: Final answer
x = 239,067.03
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.