Finding the Fourth Proportional to 315,850.77, 435,135.12 and 220,186.53
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Solution
The fourth proportional to 315,850.77, 435,135.12 and 220,186.53 is: 303,342.28
Step by Step Solution
- Step 1: Write the proportion equation
315,850.77 : 435,135.12 = 220,186.53 : x - Step 2: Convert to fraction form
315,850.77/435,135.12 = 220,186.53/x - Step 3: Cross multiply
315,850.77x = 435,135.12 × 220,186.53 - Step 4: Simplify right side
315,850.77x = 95,810,892,153.93 - Step 5: Solve for x
x = 95,810,892,153.93/315,850.77 - Step 6: Final answer
x = 303,342.28
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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.