Finding the Fourth Proportional to 287,986.09, 431,628.93 and 203,770.53
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Solution
The fourth proportional to 287,986.09, 431,628.93 and 203,770.53 is: 305,408.00
Step by Step Solution
- Step 1: Write the proportion equation
287,986.09 : 431,628.93 = 203,770.53 : x - Step 2: Convert to fraction form
287,986.09/431,628.93 = 203,770.53/x - Step 3: Cross multiply
287,986.09x = 431,628.93 × 203,770.53 - Step 4: Simplify right side
287,986.09x = 87,953,255,829.43 - Step 5: Solve for x
x = 87,953,255,829.43/287,986.09 - Step 6: Final answer
x = 305,408.00
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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.