Finding the Fourth Proportional to 191,919.20, 264,762.85 and 111,299.99
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Solution
The fourth proportional to 191,919.20, 264,762.85 and 111,299.99 is: 153,544.31
Step by Step Solution
- Step 1: Write the proportion equation
191,919.20 : 264,762.85 = 111,299.99 : x - Step 2: Convert to fraction form
191,919.20/264,762.85 = 111,299.99/x - Step 3: Cross multiply
191,919.20x = 264,762.85 × 111,299.99 - Step 4: Simplify right side
191,919.20x = 29,468,102,000.87 - Step 5: Solve for x
x = 29,468,102,000.87/191,919.20 - Step 6: Final answer
x = 153,544.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.