Finding the Fourth Proportional to 326,979.54, 490,658.58 and 137,424.96
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Solution
The fourth proportional to 326,979.54, 490,658.58 and 137,424.96 is: 206,216.99
Step by Step Solution
- Step 1: Write the proportion equation
326,979.54 : 490,658.58 = 137,424.96 : x - Step 2: Convert to fraction form
326,979.54/490,658.58 = 137,424.96/x - Step 3: Cross multiply
326,979.54x = 490,658.58 × 137,424.96 - Step 4: Simplify right side
326,979.54x = 67,428,735,730.16 - Step 5: Solve for x
x = 67,428,735,730.16/326,979.54 - Step 6: Final answer
x = 206,216.99
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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.