Finding the Fourth Proportional to 490,873.68, 736,311.48 and 135,888.75
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Solution
The fourth proportional to 490,873.68, 736,311.48 and 135,888.75 is: 203,833.39
Step by Step Solution
- Step 1: Write the proportion equation
490,873.68 : 736,311.48 = 135,888.75 : x - Step 2: Convert to fraction form
490,873.68/736,311.48 = 135,888.75/x - Step 3: Cross multiply
490,873.68x = 736,311.48 × 135,888.75 - Step 4: Simplify right side
490,873.68x = 100,056,446,627.85 - Step 5: Solve for x
x = 100,056,446,627.85/490,873.68 - Step 6: Final answer
x = 203,833.39
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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.