Finding the Fourth Proportional to 212,361.68, 318,542.18 and 145,599.41
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Solution
The fourth proportional to 212,361.68, 318,542.18 and 145,599.41 is: 218,398.88
Step by Step Solution
- Step 1: Write the proportion equation
212,361.68 : 318,542.18 = 145,599.41 : x - Step 2: Convert to fraction form
212,361.68/318,542.18 = 145,599.41/x - Step 3: Cross multiply
212,361.68x = 318,542.18 × 145,599.41 - Step 4: Simplify right side
212,361.68x = 46,379,551,875.40 - Step 5: Solve for x
x = 46,379,551,875.40/212,361.68 - Step 6: Final answer
x = 218,398.88
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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.