Finding the Fourth Proportional to 259,395.21, 389,150.46 and 79,505.55
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Solution
The fourth proportional to 259,395.21, 389,150.46 and 79,505.55 is: 119,275.99
Step by Step Solution
- Step 1: Write the proportion equation
259,395.21 : 389,150.46 = 79,505.55 : x - Step 2: Convert to fraction form
259,395.21/389,150.46 = 79,505.55/x - Step 3: Cross multiply
259,395.21x = 389,150.46 × 79,505.55 - Step 4: Simplify right side
259,395.21x = 30,939,621,355.05 - Step 5: Solve for x
x = 30,939,621,355.05/259,395.21 - Step 6: Final answer
x = 119,275.99
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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.