Finding the Fourth Proportional to 262,421.72, 393,629.99 and 120,226.66
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Solution
The fourth proportional to 262,421.72, 393,629.99 and 120,226.66 is: 180,338.80
Step by Step Solution
- Step 1: Write the proportion equation
262,421.72 : 393,629.99 = 120,226.66 : x - Step 2: Convert to fraction form
262,421.72/393,629.99 = 120,226.66/x - Step 3: Cross multiply
262,421.72x = 393,629.99 × 120,226.66 - Step 4: Simplify right side
262,421.72x = 47,324,817,388.33 - Step 5: Solve for x
x = 47,324,817,388.33/262,421.72 - Step 6: Final answer
x = 180,338.80
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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.