Finding the Fourth Proportional to 320,823.99, 481,138.79 and 133,791.75
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Solution
The fourth proportional to 320,823.99, 481,138.79 and 133,791.75 is: 200,647.09
Step by Step Solution
- Step 1: Write the proportion equation
320,823.99 : 481,138.79 = 133,791.75 : x - Step 2: Convert to fraction form
320,823.99/481,138.79 = 133,791.75/x - Step 3: Cross multiply
320,823.99x = 481,138.79 × 133,791.75 - Step 4: Simplify right side
320,823.99x = 64,372,400,038.02 - Step 5: Solve for x
x = 64,372,400,038.02/320,823.99 - Step 6: Final answer
x = 200,647.09
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1.5x scale
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.