Finding the Fourth Proportional to 319,617.28, 479,301.36 and 119,828.68
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Solution
The fourth proportional to 319,617.28, 479,301.36 and 119,828.68 is: 179,696.32
Step by Step Solution
- Step 1: Write the proportion equation
319,617.28 : 479,301.36 = 119,828.68 : x - Step 2: Convert to fraction form
319,617.28/479,301.36 = 119,828.68/x - Step 3: Cross multiply
319,617.28x = 479,301.36 × 119,828.68 - Step 4: Simplify right side
319,617.28x = 57,434,049,291.00 - Step 5: Solve for x
x = 57,434,049,291.00/319,617.28 - Step 6: Final answer
x = 179,696.32
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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.