Finding the Fourth Proportional to 494,791.80, 742,187.70 and 214,855.80
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Solution
The fourth proportional to 494,791.80, 742,187.70 and 214,855.80 is: 322,283.70
Step by Step Solution
- Step 1: Write the proportion equation
494,791.80 : 742,187.70 = 214,855.80 : x - Step 2: Convert to fraction form
494,791.80/742,187.70 = 214,855.80/x - Step 3: Cross multiply
494,791.80x = 742,187.70 × 214,855.80 - Step 4: Simplify right side
494,791.80x = 159,463,332,033.66 - Step 5: Solve for x
x = 159,463,332,033.66/494,791.80 - Step 6: Final answer
x = 322,283.70
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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.