Finding the Fourth Proportional to 251,989.62, 347,685.21 and 143,069.82
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Solution
The fourth proportional to 251,989.62, 347,685.21 and 143,069.82 is: 197,402.02
Step by Step Solution
- Step 1: Write the proportion equation
251,989.62 : 347,685.21 = 143,069.82 : x - Step 2: Convert to fraction form
251,989.62/347,685.21 = 143,069.82/x - Step 3: Cross multiply
251,989.62x = 347,685.21 × 143,069.82 - Step 4: Simplify right side
251,989.62x = 49,743,260,411.36 - Step 5: Solve for x
x = 49,743,260,411.36/251,989.62 - Step 6: Final answer
x = 197,402.02
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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.