Finding the Fourth Proportional to 286,539.87, 395,408.91 and 171,761.08
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Solution
The fourth proportional to 286,539.87, 395,408.91 and 171,761.08 is: 237,020.63
Step by Step Solution
- Step 1: Write the proportion equation
286,539.87 : 395,408.91 = 171,761.08 : x - Step 2: Convert to fraction form
286,539.87/395,408.91 = 171,761.08/x - Step 3: Cross multiply
286,539.87x = 395,408.91 × 171,761.08 - Step 4: Simplify right side
286,539.87x = 67,915,861,423.22 - Step 5: Solve for x
x = 67,915,861,423.22/286,539.87 - Step 6: Final answer
x = 237,020.63
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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.