Finding the Fourth Proportional to 302,575.40, 453,863.10 and 279,765.80
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Solution
The fourth proportional to 302,575.40, 453,863.10 and 279,765.80 is: 419,648.70
Step by Step Solution
- Step 1: Write the proportion equation
302,575.40 : 453,863.10 = 279,765.80 : x - Step 2: Convert to fraction form
302,575.40/453,863.10 = 279,765.80/x - Step 3: Cross multiply
302,575.40x = 453,863.10 × 279,765.80 - Step 4: Simplify right side
302,575.40x = 126,975,373,261.98 - Step 5: Solve for x
x = 126,975,373,261.98/302,575.40 - Step 6: Final answer
x = 419,648.70
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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.