Finding the Fourth Proportional to 289,807.70, 434,711.55 and 201,161.30
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Solution
The fourth proportional to 289,807.70, 434,711.55 and 201,161.30 is: 301,741.95
Step by Step Solution
- Step 1: Write the proportion equation
289,807.70 : 434,711.55 = 201,161.30 : x - Step 2: Convert to fraction form
289,807.70/434,711.55 = 201,161.30/x - Step 3: Cross multiply
289,807.70x = 434,711.55 × 201,161.30 - Step 4: Simplify right side
289,807.70x = 87,447,140,523.02 - Step 5: Solve for x
x = 87,447,140,523.02/289,807.70 - Step 6: Final answer
x = 301,741.95
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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.