Finding the Fourth Proportional to 378,865.60, 568,391.96 and 112,624.99
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Solution
The fourth proportional to 378,865.60, 568,391.96 and 112,624.99 is: 168,965.30
Step by Step Solution
- Step 1: Write the proportion equation
378,865.60 : 568,391.96 = 112,624.99 : x - Step 2: Convert to fraction form
378,865.60/568,391.96 = 112,624.99/x - Step 3: Cross multiply
378,865.60x = 568,391.96 × 112,624.99 - Step 4: Simplify right side
378,865.60x = 64,015,137,671.66 - Step 5: Solve for x
x = 64,015,137,671.66/378,865.60 - Step 6: Final answer
x = 168,965.30
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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.