Finding the Fourth Proportional to 264,212.44, 396,235.40 and 86,678.08
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Solution
The fourth proportional to 264,212.44, 396,235.40 and 86,678.08 is: 129,989.81
Step by Step Solution
- Step 1: Write the proportion equation
264,212.44 : 396,235.40 = 86,678.08 : x - Step 2: Convert to fraction form
264,212.44/396,235.40 = 86,678.08/x - Step 3: Cross multiply
264,212.44x = 396,235.40 × 86,678.08 - Step 4: Simplify right side
264,212.44x = 34,344,923,700.03 - Step 5: Solve for x
x = 34,344,923,700.03/264,212.44 - Step 6: Final answer
x = 129,989.81
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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.