Finding the Fourth Proportional to 289,311.28, 433,962.80 and 282,163.84
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Solution
The fourth proportional to 289,311.28, 433,962.80 and 282,163.84 is: 423,241.74
Step by Step Solution
- Step 1: Write the proportion equation
289,311.28 : 433,962.80 = 282,163.84 : x - Step 2: Convert to fraction form
289,311.28/433,962.80 = 282,163.84/x - Step 3: Cross multiply
289,311.28x = 433,962.80 × 282,163.84 - Step 4: Simplify right side
289,311.28x = 122,448,610,065.15 - Step 5: Solve for x
x = 122,448,610,065.15/289,311.28 - Step 6: Final answer
x = 423,241.74
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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.