Finding the Fourth Proportional to 422,800.80, 634,213.35 and 107,257.20
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Solution
The fourth proportional to 422,800.80, 634,213.35 and 107,257.20 is: 160,888.88
Step by Step Solution
- Step 1: Write the proportion equation
422,800.80 : 634,213.35 = 107,257.20 : x - Step 2: Convert to fraction form
422,800.80/634,213.35 = 107,257.20/x - Step 3: Cross multiply
422,800.80x = 634,213.35 × 107,257.20 - Step 4: Simplify right side
422,800.80x = 68,023,948,123.62 - Step 5: Solve for x
x = 68,023,948,123.62/422,800.80 - Step 6: Final answer
x = 160,888.88
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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.