Finding the Fourth Proportional to 319,906.38, 479,963.21 and 95,268.68
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Solution
The fourth proportional to 319,906.38, 479,963.21 and 95,268.68 is: 142,933.88
Step by Step Solution
- Step 1: Write the proportion equation
319,906.38 : 479,963.21 = 95,268.68 : x - Step 2: Convert to fraction form
319,906.38/479,963.21 = 95,268.68/x - Step 3: Cross multiply
319,906.38x = 479,963.21 × 95,268.68 - Step 4: Simplify right side
319,906.38x = 45,725,461,465.26 - Step 5: Solve for x
x = 45,725,461,465.26/319,906.38 - Step 6: Final answer
x = 142,933.88
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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.