Finding the Fourth Proportional to 290,613.44, 435,108.12 and 157,015.02
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Solution
The fourth proportional to 290,613.44, 435,108.12 and 157,015.02 is: 235,083.79
Step by Step Solution
- Step 1: Write the proportion equation
290,613.44 : 435,108.12 = 157,015.02 : x - Step 2: Convert to fraction form
290,613.44/435,108.12 = 157,015.02/x - Step 3: Cross multiply
290,613.44x = 435,108.12 × 157,015.02 - Step 4: Simplify right side
290,613.44x = 68,318,510,163.96 - Step 5: Solve for x
x = 68,318,510,163.96/290,613.44 - Step 6: Final answer
x = 235,083.79
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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.