Finding the Fourth Proportional to 380,577.87, 570,821.40 and 100,116.99
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Solution
The fourth proportional to 380,577.87, 570,821.40 and 100,116.99 is: 150,163.54
Step by Step Solution
- Step 1: Write the proportion equation
380,577.87 : 570,821.40 = 100,116.99 : x - Step 2: Convert to fraction form
380,577.87/570,821.40 = 100,116.99/x - Step 3: Cross multiply
380,577.87x = 570,821.40 × 100,116.99 - Step 4: Simplify right side
380,577.87x = 57,148,920,395.59 - Step 5: Solve for x
x = 57,148,920,395.59/380,577.87 - Step 6: Final answer
x = 150,163.54
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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.