Finding the Fourth Proportional to 320,049.99, 479,969.45 and 106,759.13
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Solution
The fourth proportional to 320,049.99, 479,969.45 and 106,759.13 is: 160,103.49
Step by Step Solution
- Step 1: Write the proportion equation
320,049.99 : 479,969.45 = 106,759.13 : x - Step 2: Convert to fraction form
320,049.99/479,969.45 = 106,759.13/x - Step 3: Cross multiply
320,049.99x = 479,969.45 × 106,759.13 - Step 4: Simplify right side
320,049.99x = 51,241,119,500.63 - Step 5: Solve for x
x = 51,241,119,500.63/320,049.99 - Step 6: Final answer
x = 160,103.49
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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.