Finding the Fourth Proportional to 331,647.42, 457,674.96 and 188,415.33
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Solution
The fourth proportional to 331,647.42, 457,674.96 and 188,415.33 is: 260,014.02
Step by Step Solution
- Step 1: Write the proportion equation
331,647.42 : 457,674.96 = 188,415.33 : x - Step 2: Convert to fraction form
331,647.42/457,674.96 = 188,415.33/x - Step 3: Cross multiply
331,647.42x = 457,674.96 × 188,415.33 - Step 4: Simplify right side
331,647.42x = 86,232,978,621.14 - Step 5: Solve for x
x = 86,232,978,621.14/331,647.42 - Step 6: Final answer
x = 260,014.02
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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.