Finding the Fourth Proportional to 419,818.95, 629,571.69 and 135,438.08
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Solution
The fourth proportional to 419,818.95, 629,571.69 and 135,438.08 is: 203,106.55
Step by Step Solution
- Step 1: Write the proportion equation
419,818.95 : 629,571.69 = 135,438.08 : x - Step 2: Convert to fraction form
419,818.95/629,571.69 = 135,438.08/x - Step 3: Cross multiply
419,818.95x = 629,571.69 × 135,438.08 - Step 4: Simplify right side
419,818.95x = 85,267,977,768.10 - Step 5: Solve for x
x = 85,267,977,768.10/419,818.95 - Step 6: Final answer
x = 203,106.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.