Finding the Fourth Proportional to 297,979.36, 446,959.12 and 129,499.68
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Solution
The fourth proportional to 297,979.36, 446,959.12 and 129,499.68 is: 194,245.21
Step by Step Solution
- Step 1: Write the proportion equation
297,979.36 : 446,959.12 = 129,499.68 : x - Step 2: Convert to fraction form
297,979.36/446,959.12 = 129,499.68/x - Step 3: Cross multiply
297,979.36x = 446,959.12 × 129,499.68 - Step 4: Simplify right side
297,979.36x = 57,881,063,013.08 - Step 5: Solve for x
x = 57,881,063,013.08/297,979.36 - Step 6: Final answer
x = 194,245.21
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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.