Finding the Fourth Proportional to 319,629.44, 479,658.20 and 132,641.12
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Solution
The fourth proportional to 319,629.44, 479,658.20 and 132,641.12 is: 199,050.50
Step by Step Solution
- Step 1: Write the proportion equation
319,629.44 : 479,658.20 = 132,641.12 : x - Step 2: Convert to fraction form
319,629.44/479,658.20 = 132,641.12/x - Step 3: Cross multiply
319,629.44x = 479,658.20 × 132,641.12 - Step 4: Simplify right side
319,629.44x = 63,622,400,865.18 - Step 5: Solve for x
x = 63,622,400,865.18/319,629.44 - Step 6: Final answer
x = 199,050.50
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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.