Finding the Fourth Proportional to 319,617.44, 479,640.18 and 132,629.12
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Solution
The fourth proportional to 319,617.44, 479,640.18 and 132,629.12 is: 199,032.49
Step by Step Solution
- Step 1: Write the proportion equation
319,617.44 : 479,640.18 = 132,629.12 : x - Step 2: Convert to fraction form
319,617.44/479,640.18 = 132,629.12/x - Step 3: Cross multiply
319,617.44x = 479,640.18 × 132,629.12 - Step 4: Simplify right side
319,617.44x = 63,614,254,990.04 - Step 5: Solve for x
x = 63,614,254,990.04/319,617.44 - Step 6: Final answer
x = 199,032.49
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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.