Finding the Fourth Proportional to 265,082.79, 397,661.12 and 85,173.63
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Solution
The fourth proportional to 265,082.79, 397,661.12 and 85,173.63 is: 127,772.31
Step by Step Solution
- Step 1: Write the proportion equation
265,082.79 : 397,661.12 = 85,173.63 : x - Step 2: Convert to fraction form
265,082.79/397,661.12 = 85,173.63/x - Step 3: Cross multiply
265,082.79x = 397,661.12 × 85,173.63 - Step 4: Simplify right side
265,082.79x = 33,870,240,674.40 - Step 5: Solve for x
x = 33,870,240,674.40/265,082.79 - Step 6: Final answer
x = 127,772.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.