Finding the Fourth Proportional to 343,861.80, 515,792.70 and 107,202.60
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Solution
The fourth proportional to 343,861.80, 515,792.70 and 107,202.60 is: 160,803.90
Step by Step Solution
- Step 1: Write the proportion equation
343,861.80 : 515,792.70 = 107,202.60 : x - Step 2: Convert to fraction form
343,861.80/515,792.70 = 107,202.60/x - Step 3: Cross multiply
343,861.80x = 515,792.70 × 107,202.60 - Step 4: Simplify right side
343,861.80x = 55,294,318,501.02 - Step 5: Solve for x
x = 55,294,318,501.02/343,861.80 - Step 6: Final answer
x = 160,803.90
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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.