Finding the Fourth Proportional to 321,028.84, 481,575.11 and 118,677.96
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Solution
The fourth proportional to 321,028.84, 481,575.11 and 118,677.96 is: 178,028.71
Step by Step Solution
- Step 1: Write the proportion equation
321,028.84 : 481,575.11 = 118,677.96 : x - Step 2: Convert to fraction form
321,028.84/481,575.11 = 118,677.96/x - Step 3: Cross multiply
321,028.84x = 481,575.11 × 118,677.96 - Step 4: Simplify right side
321,028.84x = 57,152,351,048.19 - Step 5: Solve for x
x = 57,152,351,048.19/321,028.84 - Step 6: Final answer
x = 178,028.71
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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.