Finding the Fourth Proportional to 347,728.80, 521,593.19 and 189,871.14
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Solution
The fourth proportional to 347,728.80, 521,593.19 and 189,871.14 is: 284,806.70
Step by Step Solution
- Step 1: Write the proportion equation
347,728.80 : 521,593.19 = 189,871.14 : x - Step 2: Convert to fraction form
347,728.80/521,593.19 = 189,871.14/x - Step 3: Cross multiply
347,728.80x = 521,593.19 × 189,871.14 - Step 4: Simplify right side
347,728.80x = 99,035,493,601.54 - Step 5: Solve for x
x = 99,035,493,601.54/347,728.80 - Step 6: Final answer
x = 284,806.70
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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.