Finding the Fourth Proportional to 399,871.68, 599,738.40 and 119,313.60
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Solution
The fourth proportional to 399,871.68, 599,738.40 and 119,313.60 is: 178,949.78
Step by Step Solution
- Step 1: Write the proportion equation
399,871.68 : 599,738.40 = 119,313.60 : x - Step 2: Convert to fraction form
399,871.68/599,738.40 = 119,313.60/x - Step 3: Cross multiply
399,871.68x = 599,738.40 × 119,313.60 - Step 4: Simplify right side
399,871.68x = 71,556,947,562.24 - Step 5: Solve for x
x = 71,556,947,562.24/399,871.68 - Step 6: Final answer
x = 178,949.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.