Finding the Fourth Proportional to 421,964.46, 582,317.37 and 230,995.62
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Solution
The fourth proportional to 421,964.46, 582,317.37 and 230,995.62 is: 318,777.47
Step by Step Solution
- Step 1: Write the proportion equation
421,964.46 : 582,317.37 = 230,995.62 : x - Step 2: Convert to fraction form
421,964.46/582,317.37 = 230,995.62/x - Step 3: Cross multiply
421,964.46x = 582,317.37 × 230,995.62 - Step 4: Simplify right side
421,964.46x = 134,512,761,919.92 - Step 5: Solve for x
x = 134,512,761,919.92/421,964.46 - Step 6: Final answer
x = 318,777.47
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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.