Finding the Fourth Proportional to 355,765.18, 490,967.64 and 202,800.64
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Solution
The fourth proportional to 355,765.18, 490,967.64 and 202,800.64 is: 279,871.55
Step by Step Solution
- Step 1: Write the proportion equation
355,765.18 : 490,967.64 = 202,800.64 : x - Step 2: Convert to fraction form
355,765.18/490,967.64 = 202,800.64/x - Step 3: Cross multiply
355,765.18x = 490,967.64 × 202,800.64 - Step 4: Simplify right side
355,765.18x = 99,568,551,611.29 - Step 5: Solve for x
x = 99,568,551,611.29/355,765.18 - Step 6: Final answer
x = 279,871.55
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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.