Finding the Fourth Proportional to 355,188.09, 490,182.18 and 202,239.64
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Solution
The fourth proportional to 355,188.09, 490,182.18 and 202,239.64 is: 279,103.58
Step by Step Solution
- Step 1: Write the proportion equation
355,188.09 : 490,182.18 = 202,239.64 : x - Step 2: Convert to fraction form
355,188.09/490,182.18 = 202,239.64/x - Step 3: Cross multiply
355,188.09x = 490,182.18 × 202,239.64 - Step 4: Simplify right side
355,188.09x = 99,134,265,852.27 - Step 5: Solve for x
x = 99,134,265,852.27/355,188.09 - Step 6: Final answer
x = 279,103.58
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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.