Finding the Fourth Proportional to 419,862.80, 629,775.05 and 135,566.48
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Solution
The fourth proportional to 419,862.80, 629,775.05 and 135,566.48 is: 203,343.53
Step by Step Solution
- Step 1: Write the proportion equation
419,862.80 : 629,775.05 = 135,566.48 : x - Step 2: Convert to fraction form
419,862.80/629,775.05 = 135,566.48/x - Step 3: Cross multiply
419,862.80x = 629,775.05 × 135,566.48 - Step 4: Simplify right side
419,862.80x = 85,376,382,893.62 - Step 5: Solve for x
x = 85,376,382,893.62/419,862.80 - Step 6: Final answer
x = 203,343.53
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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.