Finding the Fourth Proportional to 299,462.40, 448,805.12 and 121,762.56
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Solution
The fourth proportional to 299,462.40, 448,805.12 and 121,762.56 is: 182,485.88
Step by Step Solution
- Step 1: Write the proportion equation
299,462.40 : 448,805.12 = 121,762.56 : x - Step 2: Convert to fraction form
299,462.40/448,805.12 = 121,762.56/x - Step 3: Cross multiply
299,462.40x = 448,805.12 × 121,762.56 - Step 4: Simplify right side
299,462.40x = 54,647,660,352.31 - Step 5: Solve for x
x = 54,647,660,352.31/299,462.40 - Step 6: Final answer
x = 182,485.88
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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.