Finding the Fourth Proportional to 265,857.21, 366,817.32 and 156,964.09
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Solution
The fourth proportional to 265,857.21, 366,817.32 and 156,964.09 is: 216,571.70
Step by Step Solution
- Step 1: Write the proportion equation
265,857.21 : 366,817.32 = 156,964.09 : x - Step 2: Convert to fraction form
265,857.21/366,817.32 = 156,964.09/x - Step 3: Cross multiply
265,857.21x = 366,817.32 × 156,964.09 - Step 4: Simplify right side
265,857.21x = 57,577,147,337.35 - Step 5: Solve for x
x = 57,577,147,337.35/265,857.21 - Step 6: Final answer
x = 216,571.70
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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.