Finding the Fourth Proportional to 380,535.87, 570,758.43 and 100,074.99
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Solution
The fourth proportional to 380,535.87, 570,758.43 and 100,074.99 is: 150,100.55
Step by Step Solution
- Step 1: Write the proportion equation
380,535.87 : 570,758.43 = 100,074.99 : x - Step 2: Convert to fraction form
380,535.87/570,758.43 = 100,074.99/x - Step 3: Cross multiply
380,535.87x = 570,758.43 × 100,074.99 - Step 4: Simplify right side
380,535.87x = 57,118,644,174.67 - Step 5: Solve for x
x = 57,118,644,174.67/380,535.87 - Step 6: Final answer
x = 150,100.55
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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.