Finding the Fourth Proportional to 490,742.75, 736,114.07 and 135,747.53
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Solution
The fourth proportional to 490,742.75, 736,114.07 and 135,747.53 is: 203,621.27
Step by Step Solution
- Step 1: Write the proportion equation
490,742.75 : 736,114.07 = 135,747.53 : x - Step 2: Convert to fraction form
490,742.75/736,114.07 = 135,747.53/x - Step 3: Cross multiply
490,742.75x = 736,114.07 × 135,747.53 - Step 4: Simplify right side
490,742.75x = 99,925,662,441.44 - Step 5: Solve for x
x = 99,925,662,441.44/490,742.75 - Step 6: Final answer
x = 203,621.27
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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.