Finding the Fourth Proportional to 286,776.21, 395,748.77 and 159,450.69
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Solution
The fourth proportional to 286,776.21, 395,748.77 and 159,450.69 is: 220,040.62
Step by Step Solution
- Step 1: Write the proportion equation
286,776.21 : 395,748.77 = 159,450.69 : x - Step 2: Convert to fraction form
286,776.21/395,748.77 = 159,450.69/x - Step 3: Cross multiply
286,776.21x = 395,748.77 × 159,450.69 - Step 4: Simplify right side
286,776.21x = 63,102,414,443.15 - Step 5: Solve for x
x = 63,102,414,443.15/286,776.21 - Step 6: Final answer
x = 220,040.62
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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.