Finding the Fourth Proportional to 490,871.22, 736,224.80 and 135,921.12
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Solution
The fourth proportional to 490,871.22, 736,224.80 and 135,921.12 is: 203,858.96
Step by Step Solution
- Step 1: Write the proportion equation
490,871.22 : 736,224.80 = 135,921.12 : x - Step 2: Convert to fraction form
490,871.22/736,224.80 = 135,921.12/x - Step 3: Cross multiply
490,871.22x = 736,224.80 × 135,921.12 - Step 4: Simplify right side
490,871.22x = 100,068,498,708.17 - Step 5: Solve for x
x = 100,068,498,708.17/490,871.22 - Step 6: Final answer
x = 203,858.96
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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.