Finding the Fourth Proportional to 393,916.68, 591,023.92 and 154,201.88
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Solution
The fourth proportional to 393,916.68, 591,023.92 and 154,201.88 is: 231,361.11
Step by Step Solution
- Step 1: Write the proportion equation
393,916.68 : 591,023.92 = 154,201.88 : x - Step 2: Convert to fraction form
393,916.68/591,023.92 = 154,201.88/x - Step 3: Cross multiply
393,916.68x = 591,023.92 × 154,201.88 - Step 4: Simplify right side
393,916.68x = 91,136,999,588.97 - Step 5: Solve for x
x = 91,136,999,588.97/393,916.68 - Step 6: Final answer
x = 231,361.11
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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.