Finding the Fourth Proportional to 285,734.79, 394,234.29 and 225,117.63
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Solution
The fourth proportional to 285,734.79, 394,234.29 and 225,117.63 is: 310,599.52
Step by Step Solution
- Step 1: Write the proportion equation
285,734.79 : 394,234.29 = 225,117.63 : x - Step 2: Convert to fraction form
285,734.79/394,234.29 = 225,117.63/x - Step 3: Cross multiply
285,734.79x = 394,234.29 × 225,117.63 - Step 4: Simplify right side
285,734.79x = 88,749,089,029.53 - Step 5: Solve for x
x = 88,749,089,029.53/285,734.79 - Step 6: Final answer
x = 310,599.52
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1.5x scale
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.