Finding the Fourth Proportional to 347,198.65, 478,941.22 and 201,988.12
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Solution
The fourth proportional to 347,198.65, 478,941.22 and 201,988.12 is: 278,631.37
Step by Step Solution
- Step 1: Write the proportion equation
347,198.65 : 478,941.22 = 201,988.12 : x - Step 2: Convert to fraction form
347,198.65/478,941.22 = 201,988.12/x - Step 3: Cross multiply
347,198.65x = 478,941.22 × 201,988.12 - Step 4: Simplify right side
347,198.65x = 96,740,436,618.31 - Step 5: Solve for x
x = 96,740,436,618.31/347,198.65 - Step 6: Final answer
x = 278,631.37
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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.