Finding the Fourth Proportional to 251,850.32, 347,555.76 and 138,677.12
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Solution
The fourth proportional to 251,850.32, 347,555.76 and 138,677.12 is: 191,375.70
Step by Step Solution
- Step 1: Write the proportion equation
251,850.32 : 347,555.76 = 138,677.12 : x - Step 2: Convert to fraction form
251,850.32/347,555.76 = 138,677.12/x - Step 3: Cross multiply
251,850.32x = 347,555.76 × 138,677.12 - Step 4: Simplify right side
251,850.32x = 48,198,031,836.21 - Step 5: Solve for x
x = 48,198,031,836.21/251,850.32 - Step 6: Final answer
x = 191,375.70
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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.