Finding the Fourth Proportional to 402,286.42, 555,093.60 and 232,487.78
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Solution
The fourth proportional to 402,286.42, 555,093.60 and 232,487.78 is: 320,797.50
Step by Step Solution
- Step 1: Write the proportion equation
402,286.42 : 555,093.60 = 232,487.78 : x - Step 2: Convert to fraction form
402,286.42/555,093.60 = 232,487.78/x - Step 3: Cross multiply
402,286.42x = 555,093.60 × 232,487.78 - Step 4: Simplify right side
402,286.42x = 129,052,478,756.21 - Step 5: Solve for x
x = 129,052,478,756.21/402,286.42 - Step 6: Final answer
x = 320,797.50
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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.