Finding the Fourth Proportional to 300,873.99, 415,394.88 and 193,630.41
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Solution
The fourth proportional to 300,873.99, 415,394.88 and 193,630.41 is: 267,331.45
Step by Step Solution
- Step 1: Write the proportion equation
300,873.99 : 415,394.88 = 193,630.41 : x - Step 2: Convert to fraction form
300,873.99/415,394.88 = 193,630.41/x - Step 3: Cross multiply
300,873.99x = 415,394.88 × 193,630.41 - Step 4: Simplify right side
300,873.99x = 80,433,080,926.30 - Step 5: Solve for x
x = 80,433,080,926.30/300,873.99 - Step 6: Final answer
x = 267,331.45
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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.