Finding the Fourth Proportional to 280,688.67, 387,350.57 and 151,627.12
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Solution
The fourth proportional to 280,688.67, 387,350.57 and 151,627.12 is: 209,245.53
Step by Step Solution
- Step 1: Write the proportion equation
280,688.67 : 387,350.57 = 151,627.12 : x - Step 2: Convert to fraction form
280,688.67/387,350.57 = 151,627.12/x - Step 3: Cross multiply
280,688.67x = 387,350.57 × 151,627.12 - Step 4: Simplify right side
280,688.67x = 58,732,850,770.15 - Step 5: Solve for x
x = 58,732,850,770.15/280,688.67 - Step 6: Final answer
x = 209,245.53
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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.